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Introduced pseudo fd and separated fd for each file opening

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This commit is contained in:
Takeshi Nakatani 2021-05-23 16:28:50 +00:00 committed by Andrew Gaul
parent 53dfd48f59
commit ac578d188e
14 changed files with 1068 additions and 573 deletions
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2
src/Makefile.am
View File

@ -47,6 +47,8 @@ s3fs_SOURCES = \
fdcache_page.cpp \
fdcache_stat.cpp \
fdcache_auto.cpp \
fdcache_fdinfo.cpp \
fdcache_pseudofd.cpp \
addhead.cpp \
sighandlers.cpp \
autolock.cpp \

61
src/curl.cpp
View File

@ -3980,67 +3980,6 @@ int S3fsCurl::MultipartHeadRequest(const char* tpath, off_t size, headers_t& met
return 0;
}
int S3fsCurl::MultipartUploadRequest(const char* tpath, headers_t& meta, int fd, bool is_copy)
{
int result;
std::string upload_id;
struct stat st;
int fd2;
etaglist_t list;
off_t remaining_bytes;
off_t chunk;
S3FS_PRN_INFO3("[tpath=%s][fd=%d]", SAFESTRPTR(tpath), fd);
// duplicate fd
if(-1 == (fd2 = dup(fd)) || 0 != lseek(fd2, 0, SEEK_SET)){
S3FS_PRN_ERR("Could not duplicate file descriptor(errno=%d)", errno);
if(-1 != fd2){
close(fd2);
}
return -errno;
}
if(-1 == fstat(fd2, &st)){
S3FS_PRN_ERR("Invalid file descriptor(errno=%d)", errno);
close(fd2);
return -errno;
}
if(0 != (result = PreMultipartPostRequest(tpath, meta, upload_id, is_copy))){
close(fd2);
return result;
}
DestroyCurlHandle();
// cycle through open fd, pulling off 10MB chunks at a time
for(remaining_bytes = st.st_size; 0 < remaining_bytes; remaining_bytes -= chunk){
// chunk size
chunk = remaining_bytes > S3fsCurl::multipart_size ? S3fsCurl::multipart_size : remaining_bytes;
// set
partdata.fd = fd2;
partdata.startpos = st.st_size - remaining_bytes;
partdata.size = chunk;
b_partdata_startpos = partdata.startpos;
b_partdata_size = partdata.size;
partdata.add_etag_list(&list);
// upload part
if(0 != (result = UploadMultipartPostRequest(tpath, list.size(), upload_id))){
S3FS_PRN_ERR("failed uploading part(%d)", result);
close(fd2);
return result;
}
DestroyCurlHandle();
}
close(fd2);
if(0 != (result = CompleteMultipartPostRequest(tpath, upload_id, list))){
return result;
}
return 0;
}
int S3fsCurl::MultipartUploadRequest(const std::string& upload_id, const char* tpath, int fd, off_t offset, off_t size, etaglist_t& list)
{
S3FS_PRN_INFO3("[upload_id=%s][tpath=%s][fd=%d][offset=%lld][size=%lld]", upload_id.c_str(), SAFESTRPTR(tpath), fd, static_cast<long long int>(offset), static_cast<long long int>(size));

1
src/curl.h
View File

@ -393,7 +393,6 @@ class S3fsCurl
int MultipartListRequest(std::string& body);
int AbortMultipartUpload(const char* tpath, const std::string& upload_id);
int MultipartHeadRequest(const char* tpath, off_t size, headers_t& meta, bool is_copy);
int MultipartUploadRequest(const char* tpath, headers_t& meta, int fd, bool is_copy);
int MultipartUploadRequest(const std::string& upload_id, const char* tpath, int fd, off_t offset, off_t size, etaglist_t& list);
int MultipartRenameRequest(const char* from, const char* to, headers_t& meta, off_t size);

159
src/fdcache.cpp
View File

@ -28,6 +28,7 @@
#include "common.h"
#include "s3fs.h"
#include "fdcache.h"
#include "fdcache_pseudofd.h"
#include "s3fs_util.h"
#include "s3fs_logger.h"
#include "string_util.h"
@ -344,6 +345,16 @@ bool FdManager::HaveLseekHole()
return FdManager::have_lseek_hole;
}
bool FdManager::HasOpenEntityFd(const char* path)
{
FdEntity* ent;
int fd = -1;
if(NULL == (ent = FdManager::singleton.GetFdEntity(path, fd, false))){
return false;
}
return (0 < ent->GetOpenCount());
}
//------------------------------------------------
// FdManager methods
//------------------------------------------------
@ -379,7 +390,7 @@ FdManager::~FdManager()
if(this == FdManager::get()){
for(fdent_map_t::iterator iter = fent.begin(); fent.end() != iter; ++iter){
FdEntity* ent = (*iter).second;
S3FS_PRN_WARN("To exit with the cache file opened: path=%s, refcnt=%d", ent->GetPath(), ent->GetRefCnt());
S3FS_PRN_WARN("To exit with the cache file opened: path=%s, refcnt=%d", ent->GetPath(), ent->GetOpenCount());
delete ent;
}
fent.clear();
@ -405,7 +416,7 @@ FdManager::~FdManager()
}
}
FdEntity* FdManager::GetFdEntity(const char* path, int existfd, bool increase_ref)
FdEntity* FdManager::GetFdEntity(const char* path, int& existfd, bool newfd)
{
S3FS_PRN_INFO3("[path=%s][fd=%d]", SAFESTRPTR(path), existfd);
@ -415,22 +426,29 @@ FdEntity* FdManager::GetFdEntity(const char* path, int existfd, bool increase_re
AutoLock auto_lock(&FdManager::fd_manager_lock);
fdent_map_t::iterator iter = fent.find(std::string(path));
if(fent.end() != iter && (-1 == existfd || (*iter).second->GetFd() == existfd)){
if(increase_ref){
iter->second->Dup();
if(fent.end() != iter && iter->second){
if(-1 == existfd){
if(newfd){
existfd = iter->second->OpenPseudoFd(O_RDWR); // [NOTE] O_RDWR flags
}
return iter->second;
}else if(iter->second->FindPseudoFd(existfd)){
if(newfd){
existfd = iter->second->Dup(existfd);
}
return iter->second;
}
return (*iter).second;
}
if(-1 != existfd){
for(iter = fent.begin(); iter != fent.end(); ++iter){
if((*iter).second && (*iter).second->GetFd() == existfd){
if(iter->second && iter->second->FindPseudoFd(existfd)){
// found opened fd in map
if(0 == strcmp((*iter).second->GetPath(), path)){
if(increase_ref){
iter->second->Dup();
if(0 == strcmp(iter->second->GetPath(), path)){
if(newfd){
existfd = iter->second->Dup(existfd);
}
return (*iter).second;
return iter->second;
}
// found fd, but it is used another file(file descriptor is recycled)
// so returns NULL.
@ -438,24 +456,30 @@ FdEntity* FdManager::GetFdEntity(const char* path, int existfd, bool increase_re
}
}
}
// If the cache directory is not specified, s3fs opens a temporary file
// when the file is opened.
if(!FdManager::IsCacheDir()){
for(iter = fent.begin(); iter != fent.end(); ++iter){
if(iter->second && iter->second->IsOpen() && 0 == strcmp(iter->second->GetPath(), path)){
return iter->second;
}
}
}
return NULL;
}
FdEntity* FdManager::Open(const char* path, headers_t* pmeta, off_t size, time_t time, bool force_tmpfile, bool is_create, bool no_fd_lock_wait)
FdEntity* FdManager::Open(int& fd, const char* path, headers_t* pmeta, off_t size, time_t time, int flags, bool force_tmpfile, bool is_create, bool no_fd_lock_wait)
{
S3FS_PRN_DBG("[path=%s][size=%lld][time=%lld]", SAFESTRPTR(path), static_cast<long long>(size), static_cast<long long>(time));
S3FS_PRN_DBG("[path=%s][size=%lld][time=%lld][flags=0x%x]", SAFESTRPTR(path), static_cast<long long>(size), static_cast<long long>(time), flags);
if(!path || '\0' == path[0]){
return NULL;
}
bool close = false;
FdEntity* ent;
AutoLock auto_lock(&FdManager::fd_manager_lock);
// search in mapping by key(path)
fdent_map_t::iterator iter = fent.find(std::string(path));
if(fent.end() == iter && !force_tmpfile && !FdManager::IsCacheDir()){
// If the cache directory is not specified, s3fs opens a temporary file
// when the file is opened.
@ -463,16 +487,17 @@ FdEntity* FdManager::Open(const char* path, headers_t* pmeta, off_t size, time_t
// search a entity in all which opened the temporary file.
//
for(iter = fent.begin(); iter != fent.end(); ++iter){
if((*iter).second && (*iter).second->IsOpen() && 0 == strcmp((*iter).second->GetPath(), path)){
if(iter->second && iter->second->IsOpen() && 0 == strcmp(iter->second->GetPath(), path)){
break; // found opened fd in mapping
}
}
}
FdEntity* ent;
if(fent.end() != iter){
// found
ent = (*iter).second;
ent->Dup();
ent = iter->second;
if(ent->IsModified()){
// If the file is being modified and it's size is larger than size parameter, it will not be resized.
off_t cur_size = 0;
@ -480,7 +505,12 @@ FdEntity* FdManager::Open(const char* path, headers_t* pmeta, off_t size, time_t
size = -1;
}
}
close = true;
// (re)open
if(-1 == (fd = ent->Open(pmeta, size, time, flags, no_fd_lock_wait ? AutoLock::NO_WAIT : AutoLock::NON))){
S3FS_PRN_ERR("failed to (re)open and create new pseudo fd for path(%s).", path);
return NULL;
}
}else if(is_create){
// not found
@ -492,6 +522,12 @@ FdEntity* FdManager::Open(const char* path, headers_t* pmeta, off_t size, time_t
// make new obj
ent = new FdEntity(path, cache_path.c_str());
// open
if(-1 == (fd = ent->Open(pmeta, size, time, flags, no_fd_lock_wait ? AutoLock::NO_WAIT : AutoLock::NON))){
delete ent;
return NULL;
}
if(!cache_path.empty()){
// using cache
fent[std::string(path)] = ent;
@ -507,48 +543,44 @@ FdEntity* FdManager::Open(const char* path, headers_t* pmeta, off_t size, time_t
FdManager::MakeRandomTempPath(path, tmppath);
fent[tmppath] = ent;
}
}else{
return NULL;
}
// open
if(0 != ent->Open(pmeta, size, time, no_fd_lock_wait ? AutoLock::NO_WAIT : AutoLock::NONE)){
if(close){
ent->Close();
}
return NULL;
}
if(close){
ent->Close();
}
return ent;
}
FdEntity* FdManager::ExistOpen(const char* path, int existfd, bool ignore_existfd)
// [NOTE]
// This method does not create a new pseudo fd.
// It just finds existfd and returns the corresponding entity.
//
FdEntity* FdManager::GetExistFdEntiy(const char* path, int existfd)
{
S3FS_PRN_DBG("[path=%s][fd=%d][ignore_existfd=%s]", SAFESTRPTR(path), existfd, ignore_existfd ? "true" : "false");
S3FS_PRN_DBG("[path=%s][existfd=%d]", SAFESTRPTR(path), existfd);
// search by real path
FdEntity* ent = Open(path, NULL, -1, -1, false, false);
AutoLock auto_lock(&FdManager::fd_manager_lock);
if(!ent && (ignore_existfd || (-1 != existfd))){
// search from all fdentity because of not using cache.
AutoLock auto_lock(&FdManager::fd_manager_lock);
for(fdent_map_t::iterator iter = fent.begin(); iter != fent.end(); ++iter){
if((*iter).second && (*iter).second->IsOpen() && (ignore_existfd || ((*iter).second->GetFd() == existfd))){
// found opened fd in map
if(0 == strcmp((*iter).second->GetPath(), path)){
ent = (*iter).second;
ent->Dup();
}else{
// found fd, but it is used another file(file descriptor is recycled)
// so returns NULL.
}
break;
}
// search from all entity.
for(fdent_map_t::iterator iter = fent.begin(); iter != fent.end(); ++iter){
if(iter->second && iter->second->FindPseudoFd(existfd)){
// found existfd in entity
return iter->second;
}
}
// not found entity
return NULL;
}
FdEntity* FdManager::OpenExistFdEntiy(const char* path, int& fd, int flags)
{
S3FS_PRN_DBG("[path=%s][flags=0x%x]", SAFESTRPTR(path), flags);
// search entity by path, and create pseudo fd
FdEntity* ent = Open(fd, path, NULL, -1, -1, flags, false, false);
if(!ent){
// Not found entity
return NULL;
}
return ent;
}
@ -564,7 +596,7 @@ void FdManager::Rename(const std::string &from, const std::string &to)
// search a entity in all which opened the temporary file.
//
for(iter = fent.begin(); iter != fent.end(); ++iter){
if((*iter).second && (*iter).second->IsOpen() && 0 == strcmp((*iter).second->GetPath(), from.c_str())){
if(iter->second && iter->second->IsOpen() && 0 == strcmp(iter->second->GetPath(), from.c_str())){
break; // found opened fd in mapping
}
}
@ -574,7 +606,7 @@ void FdManager::Rename(const std::string &from, const std::string &to)
// found
S3FS_PRN_DBG("[from=%s][to=%s]", from.c_str(), to.c_str());
FdEntity* ent = (*iter).second;
FdEntity* ent = iter->second;
// retrieve old fd entity from map
fent.erase(iter);
@ -591,34 +623,33 @@ void FdManager::Rename(const std::string &from, const std::string &to)
}
}
bool FdManager::Close(FdEntity* ent)
bool FdManager::Close(FdEntity* ent, int fd)
{
S3FS_PRN_DBG("[ent->file=%s][ent->fd=%d]", ent ? ent->GetPath() : "", ent ? ent->GetFd() : -1);
S3FS_PRN_DBG("[ent->file=%s][pseudo_fd=%d]", ent ? ent->GetPath() : "", fd);
if(!ent){
if(!ent || -1 == fd){
return true; // returns success
}
AutoLock auto_lock(&FdManager::fd_manager_lock);
for(fdent_map_t::iterator iter = fent.begin(); iter != fent.end(); ++iter){
if((*iter).second == ent){
ent->Close();
if(iter->second == ent){
ent->Close(fd);
if(!ent->IsOpen()){
// remove found entity from map.
fent.erase(iter++);
// check another key name for entity value to be on the safe side
for(; iter != fent.end(); ){
if((*iter).second == ent){
if(iter->second == ent){
fent.erase(iter++);
}else{
++iter;
}
}
delete ent;
}
return true;
}
return true;
}
}
return false;
@ -629,7 +660,7 @@ bool FdManager::ChangeEntityToTempPath(FdEntity* ent, const char* path)
AutoLock auto_lock(&FdManager::fd_manager_lock);
for(fdent_map_t::iterator iter = fent.begin(); iter != fent.end(); ){
if((*iter).second == ent){
if(iter->second == ent){
fent.erase(iter++);
std::string tmppath;

11
src/fdcache.h
View File

@ -67,7 +67,7 @@ class FdManager
static bool MakeRandomTempPath(const char* path, std::string& tmppath);
static bool SetCheckCacheDirExist(bool is_check);
static bool CheckCacheDirExist();
static bool HasOpenEntityFd(const char* path);
static off_t GetEnsureFreeDiskSpace();
static off_t SetEnsureFreeDiskSpace(off_t size);
static bool IsSafeDiskSpace(const char* path, off_t size);
@ -76,11 +76,12 @@ class FdManager
static bool HaveLseekHole();
// Return FdEntity associated with path, returning NULL on error. This operation increments the reference count; callers must decrement via Close after use.
FdEntity* GetFdEntity(const char* path, int existfd = -1, bool increase_ref = true);
FdEntity* Open(const char* path, headers_t* pmeta = NULL, off_t size = -1, time_t time = -1, bool force_tmpfile = false, bool is_create = true, bool no_fd_lock_wait = false);
FdEntity* ExistOpen(const char* path, int existfd = -1, bool ignore_existfd = false);
FdEntity* GetFdEntity(const char* path, int& existfd, bool newfd = true);
FdEntity* Open(int& fd, const char* path, headers_t* pmeta = NULL, off_t size = -1, time_t time = -1, int flags = O_RDONLY, bool force_tmpfile = false, bool is_create = true, bool no_fd_lock_wait = false);
FdEntity* GetExistFdEntiy(const char* path, int existfd = -1);
FdEntity* OpenExistFdEntiy(const char* path, int& fd, int flags = O_RDONLY);
void Rename(const std::string &from, const std::string &to);
bool Close(FdEntity* ent);
bool Close(FdEntity* ent, int fd);
bool ChangeEntityToTempPath(FdEntity* ent, const char* path);
void CleanupCacheDir();

79
src/fdcache_auto.cpp
View File

@ -29,7 +29,7 @@
//------------------------------------------------
// AutoFdEntity methods
//------------------------------------------------
AutoFdEntity::AutoFdEntity() : pFdEntity(NULL)
AutoFdEntity::AutoFdEntity() : pFdEntity(NULL), pseudo_fd(-1)
{
}
@ -38,13 +38,16 @@ AutoFdEntity::AutoFdEntity() : pFdEntity(NULL)
// Even if it is called, the consistency of the number of
// references can be maintained, but this case is not assumed.
//
AutoFdEntity::AutoFdEntity(AutoFdEntity& other) : pFdEntity(NULL)
AutoFdEntity::AutoFdEntity(AutoFdEntity& other) : pFdEntity(NULL), pseudo_fd(-1)
{
S3FS_PRN_WARN("This method should not be called. Please check the caller.");
if(other.pFdEntity){
other.pFdEntity->Dup();
pFdEntity = other.pFdEntity;
if(-1 != (pseudo_fd = other.pFdEntity->Dup(other.pseudo_fd))){
pFdEntity = other.pFdEntity;
}else{
S3FS_PRN_ERR("Failed duplicating fd in AutoFdEntity.");
}
}
}
@ -56,11 +59,12 @@ AutoFdEntity::~AutoFdEntity()
bool AutoFdEntity::Close()
{
if(pFdEntity){
if(!FdManager::get()->Close(pFdEntity)){
if(!FdManager::get()->Close(pFdEntity, pseudo_fd)){
S3FS_PRN_ERR("Failed to close fdentity.");
return false;
}
pFdEntity = NULL;
pseudo_fd = -1;
}
return true;
}
@ -69,48 +73,61 @@ bool AutoFdEntity::Close()
// This method touches the internal fdentity with.
// This is used to keep the file open.
//
bool AutoFdEntity::Detach()
int AutoFdEntity::Detach()
{
if(!pFdEntity){
S3FS_PRN_ERR("Does not have a associated FdEntity.");
return -1;
}
int fd = pseudo_fd;
pseudo_fd = -1;
pFdEntity = NULL;
return fd;
}
bool AutoFdEntity::Attach(const char* path, int existfd)
{
Close();
if(NULL == (pFdEntity = FdManager::get()->GetFdEntity(path, existfd, false))){
S3FS_PRN_DBG("Could not find fd entity object(file=%s, existfd=%d)", path, existfd);
return false;
}
pFdEntity = NULL;
pseudo_fd = existfd;
return true;
}
FdEntity* AutoFdEntity::Open(const char* path, headers_t* pmeta, off_t size, time_t time, int flags, bool force_tmpfile, bool is_create, bool no_fd_lock_wait)
{
Close();
if(NULL == (pFdEntity = FdManager::get()->Open(pseudo_fd, path, pmeta, size, time, flags, force_tmpfile, is_create, no_fd_lock_wait))){
pseudo_fd = -1;
return NULL;
}
return pFdEntity;
}
// [NOTE]
// This method calls the FdManager method without incrementing the
// reference count.
// This means that it will only be used to map to a file descriptor
// that was already open.
// the fd obtained by this method is not a newly created pseudo fd.
//
FdEntity* AutoFdEntity::GetFdEntity(const char* path, int existfd, bool increase_ref)
FdEntity* AutoFdEntity::GetExistFdEntiy(const char* path, int existfd)
{
Close();
if(NULL == (pFdEntity = FdManager::get()->GetFdEntity(path, existfd, increase_ref))){
S3FS_PRN_DBG("Could not find fd(file=%s, existfd=%d)", path, existfd);
FdEntity* ent;
if(NULL == (ent = FdManager::get()->GetExistFdEntiy(path, existfd))){
return NULL;
}
return pFdEntity;
return ent;
}
FdEntity* AutoFdEntity::Open(const char* path, headers_t* pmeta, off_t size, time_t time, bool force_tmpfile, bool is_create, bool no_fd_lock_wait)
FdEntity* AutoFdEntity::OpenExistFdEntiy(const char* path, int flags)
{
Close();
if(NULL == (pFdEntity = FdManager::get()->Open(path, pmeta, size, time, force_tmpfile, is_create, no_fd_lock_wait))){
return NULL;
}
return pFdEntity;
}
FdEntity* AutoFdEntity::ExistOpen(const char* path, int existfd, bool ignore_existfd)
{
Close();
if(NULL == (pFdEntity = FdManager::get()->ExistOpen(path, existfd, ignore_existfd))){
if(NULL == (pFdEntity = FdManager::get()->OpenExistFdEntiy(path, pseudo_fd, flags))){
return NULL;
}
return pFdEntity;
@ -128,8 +145,12 @@ bool AutoFdEntity::operator=(AutoFdEntity& other)
Close();
if(other.pFdEntity){
other.pFdEntity->Dup();
pFdEntity = other.pFdEntity;
if(-1 != (pseudo_fd = other.pFdEntity->Dup(other.pseudo_fd))){
pFdEntity = other.pFdEntity;
}else{
S3FS_PRN_ERR("Failed duplicating fd in AutoFdEntity.");
return false;
}
}
return true;
}

12
src/fdcache_auto.h
View File

@ -35,6 +35,7 @@ class AutoFdEntity
{
private:
FdEntity* pFdEntity;
int pseudo_fd;
private:
AutoFdEntity(AutoFdEntity& other);
@ -45,10 +46,13 @@ class AutoFdEntity
~AutoFdEntity();
bool Close();
bool Detach();
FdEntity* GetFdEntity(const char* path, int existfd = -1, bool increase_ref = true);
FdEntity* Open(const char* path, headers_t* pmeta = NULL, off_t size = -1, time_t time = -1, bool force_tmpfile = false, bool is_create = true, bool no_fd_lock_wait = false);
FdEntity* ExistOpen(const char* path, int existfd = -1, bool ignore_existfd = false);
int Detach();
bool Attach(const char* path, int existfd);
int GetPseudoFd() const { return pseudo_fd; }
FdEntity* Open(const char* path, headers_t* pmeta = NULL, off_t size = -1, time_t time = -1, int flags = O_RDONLY, bool force_tmpfile = false, bool is_create = true, bool no_fd_lock_wait = false);
FdEntity* GetExistFdEntiy(const char* path, int existfd = -1);
FdEntity* OpenExistFdEntiy(const char* path, int flags = O_RDONLY);
};
#endif // S3FS_FDCACHE_AUTO_H_

792
src/fdcache_entity.cpp
View File

File diff suppressed because it is too large Load Diff

33
src/fdcache_entity.h
View File

@ -23,6 +23,7 @@
#include "autolock.h"
#include "fdcache_page.h"
#include "fdcache_fdinfo.h"
#include "metaheader.h"
//------------------------------------------------
@ -35,9 +36,9 @@ class FdEntity
pthread_mutex_t fdent_lock;
bool is_lock_init;
int refcnt; // reference count
std::string path; // object path
int fd; // file descriptor(tmp file or cache file)
int physical_fd; // physical file(cache or temporary file) descriptor
fdinfo_map_t pseudo_fd_map; // pseudo file descriptor information map
FILE* pfile; // file pointer(tmp file or cache file)
ino_t inode; // inode number for cache file
headers_t orgmeta; // original headers at opening
@ -62,6 +63,8 @@ class FdEntity
void Clear();
ino_t GetInode();
int OpenMirrorFile();
int NoCacheLoadAndPost(off_t start = 0, off_t size = 0); // size=0 means loading to end
bool CheckPseudoFdFlags(int fd, bool writable, bool lock_already_held = false);
bool SetAllStatus(bool is_loaded); // [NOTE] not locking
bool SetAllStatusUnloaded() { return SetAllStatus(false); }
int UploadPendingMeta();
@ -73,16 +76,17 @@ class FdEntity
explicit FdEntity(const char* tpath = NULL, const char* cpath = NULL);
~FdEntity();
void Close();
bool IsOpen() const { return (-1 != fd); }
int Open(headers_t* pmeta, off_t size, time_t time, AutoLock::Type type);
bool OpenAndLoadAll(headers_t* pmeta = NULL, off_t* size = NULL, bool force_load = false);
int Dup(bool lock_already_held = false);
int GetRefCnt() const { return refcnt; } // [NOTE] Use only debugging
void Close(int fd);
bool IsOpen() const { return (-1 != physical_fd); }
bool FindPseudoFd(int fd, bool lock_already_held = false);
int Open(headers_t* pmeta, off_t size, time_t time, int flags, AutoLock::Type type);
bool LoadAll(int fd, headers_t* pmeta = NULL, off_t* size = NULL, bool force_load = false);
int Dup(int fd, bool lock_already_held = false);
int OpenPseudoFd(int flags = O_RDONLY, bool lock_already_held = false);
int GetOpenCount(bool lock_already_held = false);
const char* GetPath() const { return path.c_str(); }
bool RenamePath(const std::string& newpath, std::string& fentmapkey);
int GetFd() const { return fd; }
int GetPhysicalFd() const { return physical_fd; }
bool IsModified() const;
bool MergeOrgMeta(headers_t& updatemeta);
@ -105,17 +109,16 @@ class FdEntity
bool SetContentType(const char* path);
int Load(off_t start = 0, off_t size = 0, bool lock_already_held = false, bool is_modified_flag = false); // size=0 means loading to end
int NoCacheLoadAndPost(off_t start = 0, off_t size = 0); // size=0 means loading to end
int NoCachePreMultipartPost();
int NoCacheMultipartPost(int tgfd, off_t start, off_t size);
int NoCacheCompleteMultipartPost();
off_t BytesModified();
int RowFlush(const char* tpath, bool force_sync = false);
int Flush(bool force_sync = false) { return RowFlush(NULL, force_sync); }
int RowFlush(int fd, const char* tpath, bool force_sync = false);
int Flush(int fd, bool force_sync = false) { return RowFlush(fd, NULL, force_sync); }
ssize_t Read(char* bytes, off_t start, size_t size, bool force_load = false);
ssize_t Write(const char* bytes, off_t start, size_t size);
ssize_t Read(int fd, char* bytes, off_t start, size_t size, bool force_load = false);
ssize_t Write(int fd, const char* bytes, off_t start, size_t size);
bool ReserveDiskSpace(off_t size);
bool PunchHole(off_t start = 0, size_t size = 0);

98
src/fdcache_fdinfo.cpp Normal file
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@ -0,0 +1,98 @@
/*
* s3fs - FUSE-based file system backed by Amazon S3
*
* Copyright(C) 2007 Takeshi Nakatani <ggtakec.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <cstdio>
#include <cstdlib>
#include <algorithm>
#include "common.h"
#include "s3fs.h"
#include "fdcache_fdinfo.h"
#include "fdcache_pseudofd.h"
#include "autolock.h"
//------------------------------------------------
// PseudoFdInfo methods
//------------------------------------------------
PseudoFdInfo::PseudoFdInfo(int fd, int open_flags) : pseudo_fd(-1), physical_fd(fd), flags(0) //, is_lock_init(false)
{
if(-1 != physical_fd){
pseudo_fd = PseudoFdManager::Get();
flags = open_flags;
}
}
PseudoFdInfo::~PseudoFdInfo()
{
Clear();
}
bool PseudoFdInfo::Clear()
{
if(-1 != pseudo_fd){
PseudoFdManager::Release(pseudo_fd);
}
pseudo_fd = -1;
physical_fd = -1;
return true;
}
bool PseudoFdInfo::Set(int fd, int open_flags)
{
if(-1 == fd){
return false;
}
Clear();
physical_fd = fd;
pseudo_fd = PseudoFdManager::Get();
flags = open_flags;
return true;
}
bool PseudoFdInfo::Writable() const
{
if(-1 == pseudo_fd){
return false;
}
if(0 == (flags & (O_WRONLY | O_RDWR))){
return false;
}
return true;
}
bool PseudoFdInfo::Readable() const
{
if(-1 == pseudo_fd){
return false;
}
// O_RDONLY is 0x00, it means any pattern is readable.
return true;
}
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: expandtab sw=4 ts=4 fdm=marker
* vim<600: expandtab sw=4 ts=4
*/

61
src/fdcache_fdinfo.h Normal file
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@ -0,0 +1,61 @@
/*
* s3fs - FUSE-based file system backed by Amazon S3
*
* Copyright(C) 2007 Randy Rizun <rrizun@gmail.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef S3FS_FDCACHE_FDINFO_H_
#define S3FS_FDCACHE_FDINFO_H_
//------------------------------------------------
// Class PseudoFdInfo
//------------------------------------------------
class PseudoFdInfo
{
private:
int pseudo_fd;
int physical_fd;
int flags; // flags at open
private:
bool Clear();
public:
PseudoFdInfo(int fd = -1, int open_flags = 0);
~PseudoFdInfo();
int GetPhysicalFd() const { return physical_fd; }
int GetPseudoFd() const { return pseudo_fd; }
int GetFlags() const { return flags; }
bool Writable() const;
bool Readable() const;
bool Set(int fd, int open_flags);
};
typedef std::map<int, class PseudoFdInfo*> fdinfo_map_t;
#endif // S3FS_FDCACHE_FDINFO_H_
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: expandtab sw=4 ts=4 fdm=marker
* vim<600: expandtab sw=4 ts=4
*/

134
src/fdcache_pseudofd.cpp Normal file
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@ -0,0 +1,134 @@
/*
* s3fs - FUSE-based file system backed by Amazon S3
*
* Copyright(C) 2007 Takeshi Nakatani <ggtakec.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <cstdio>
#include <cstdlib>
#include <algorithm>
#include "common.h"
#include "s3fs.h"
#include "fdcache_pseudofd.h"
#include "autolock.h"
//------------------------------------------------
// Symbols
//------------------------------------------------
// [NOTE]
// The minimum pseudo fd value starts 2.
// This is to avoid mistakes for 0(stdout) and 1(stderr), which are usually used.
//
#define MIN_PSEUDOFD_NUMBER 2
//------------------------------------------------
// PseudoFdManager class methods
//------------------------------------------------
PseudoFdManager& PseudoFdManager::GetManager()
{
static PseudoFdManager singleton;
return singleton;
}
int PseudoFdManager::Get()
{
return (PseudoFdManager::GetManager()).CreatePseudoFd();
}
bool PseudoFdManager::Release(int fd)
{
return (PseudoFdManager::GetManager()).ReleasePseudoFd(fd);
}
//------------------------------------------------
// PseudoFdManager methods
//------------------------------------------------
PseudoFdManager::PseudoFdManager() : is_lock_init(false)
{
pthread_mutexattr_t attr;
pthread_mutexattr_init(&attr);
#if S3FS_PTHREAD_ERRORCHECK
pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ERRORCHECK);
#endif
int result;
if(0 != (result = pthread_mutex_init(&pseudofd_list_lock, &attr))){
S3FS_PRN_CRIT("failed to init pseudofd_list_lock: %d", result);
abort();
}
is_lock_init = true;
}
PseudoFdManager::~PseudoFdManager()
{
if(is_lock_init){
int result;
if(0 != (result = pthread_mutex_destroy(&pseudofd_list_lock))){
S3FS_PRN_CRIT("failed to destroy pseudofd_list_lock: %d", result);
abort();
}
is_lock_init = false;
}
}
int PseudoFdManager::GetUnusedMinPseudoFd() const
{
int min_fd = MIN_PSEUDOFD_NUMBER;
// Look for the first discontinuous value.
for(pseudofd_list_t::const_iterator iter = pseudofd_list.begin(); iter != pseudofd_list.end(); ++iter){
if(min_fd == (*iter)){
++min_fd;
}else if(min_fd < (*iter)){
break;
}
}
return min_fd;
}
int PseudoFdManager::CreatePseudoFd()
{
AutoLock auto_lock(&pseudofd_list_lock);
int new_fd = PseudoFdManager::GetUnusedMinPseudoFd();
pseudofd_list.push_back(new_fd);
std::sort(pseudofd_list.begin(), pseudofd_list.end());
return new_fd;
}
bool PseudoFdManager::ReleasePseudoFd(int fd)
{
AutoLock auto_lock(&pseudofd_list_lock);
for(pseudofd_list_t::iterator iter = pseudofd_list.begin(); iter != pseudofd_list.end(); ++iter){
if(fd == (*iter)){
pseudofd_list.erase(iter);
return true;
}
}
return false;
}
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: expandtab sw=4 ts=4 fdm=marker
* vim<600: expandtab sw=4 ts=4
*/

65
src/fdcache_pseudofd.h Normal file
View File

@ -0,0 +1,65 @@
/*
* s3fs - FUSE-based file system backed by Amazon S3
*
* Copyright(C) 2007 Randy Rizun <rrizun@gmail.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef S3FS_FDCACHE_PSEUDOFD_H_
#define S3FS_FDCACHE_PSEUDOFD_H_
//------------------------------------------------
// Typdefs
//------------------------------------------------
// List of pseudo fd in use
//
typedef std::vector<int> pseudofd_list_t;
//------------------------------------------------
// Class PseudoFdManager
//------------------------------------------------
class PseudoFdManager
{
private:
pseudofd_list_t pseudofd_list;
bool is_lock_init;
pthread_mutex_t pseudofd_list_lock; // protects pseudofd_list
private:
static PseudoFdManager& GetManager();
PseudoFdManager();
~PseudoFdManager();
int GetUnusedMinPseudoFd() const;
int CreatePseudoFd();
bool ReleasePseudoFd(int fd);
public:
static int Get();
static bool Release(int fd);
};
#endif // S3FS_FDCACHE_PSEUDOFD_H_
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: expandtab sw=4 ts=4 fdm=marker
* vim<600: expandtab sw=4 ts=4
*/

133
src/s3fs.cpp
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@ -119,7 +119,7 @@ static int get_object_attribute(const char* path, struct stat* pstbuf, headers_t
static int check_object_access(const char* path, int mask, struct stat* pstbuf);
static int check_object_owner(const char* path, struct stat* pstbuf);
static int check_parent_object_access(const char* path, int mask);
static int get_local_fent(AutoFdEntity& autoent, FdEntity **entity, const char* path, bool is_load = false);
static int get_local_fent(AutoFdEntity& autoent, FdEntity **entity, const char* path, int flags = O_RDONLY, bool is_load = false);
static bool multi_head_callback(S3fsCurl* s3fscurl);
static S3fsCurl* multi_head_retry_callback(S3fsCurl* s3fscurl);
static int readdir_multi_head(const char* path, const S3ObjList& head, void* buf, fuse_fill_dir_t filler);
@ -700,7 +700,7 @@ bool get_object_sse_type(const char* path, sse_type_t& ssetype, std::string& sse
return true;
}
static int get_local_fent(AutoFdEntity& autoent, FdEntity **entity, const char* path, bool is_load)
static int get_local_fent(AutoFdEntity& autoent, FdEntity **entity, const char* path, int flags, bool is_load)
{
int result;
struct stat stobj;
@ -717,12 +717,12 @@ static int get_local_fent(AutoFdEntity& autoent, FdEntity **entity, const char*
time_t mtime = (!S_ISREG(stobj.st_mode) && !S_ISLNK(stobj.st_mode)) ? -1 : stobj.st_mtime;
bool force_tmpfile = S_ISREG(stobj.st_mode) ? false : true;
if(NULL == (ent = autoent.Open(path, &meta, stobj.st_size, mtime, force_tmpfile, true))){
if(NULL == (ent = autoent.Open(path, &meta, stobj.st_size, mtime, flags, force_tmpfile, true))){
S3FS_PRN_ERR("Could not open file. errno(%d)", errno);
return -EIO;
}
// load
if(is_load && !ent->OpenAndLoadAll(&meta)){
if(is_load && !ent->LoadAll(autoent.GetPseudoFd(), &meta)){
S3FS_PRN_ERR("Could not load file. errno(%d)", errno);
autoent.Close();
return -EIO;
@ -780,7 +780,7 @@ static int s3fs_getattr(const char* _path, struct stat* stbuf)
if(stbuf){
AutoFdEntity autoent;
FdEntity* ent;
if(NULL != (ent = autoent.ExistOpen(path))){
if(NULL != (ent = autoent.OpenExistFdEntiy(path))){
struct stat tmpstbuf;
if(ent->GetStats(tmpstbuf)){
stbuf->st_size = tmpstbuf.st_size;
@ -811,7 +811,7 @@ static int s3fs_readlink(const char* _path, char* buf, size_t size)
AutoFdEntity autoent;
FdEntity* ent;
int result;
if(0 != (result = get_local_fent(autoent, &ent, path))){
if(0 != (result = get_local_fent(autoent, &ent, path, O_RDONLY))){
S3FS_PRN_ERR("could not get fent(file=%s)", path);
return result;
}
@ -826,7 +826,7 @@ static int s3fs_readlink(const char* _path, char* buf, size_t size)
}
// Read
ssize_t ressize;
if(0 > (ressize = ent->Read(buf, 0, readsize))){
if(0 > (ressize = ent->Read(autoent.GetPseudoFd(), buf, 0, readsize))){
S3FS_PRN_ERR("could not read file(file=%s, ressize=%zd)", path, ressize);
return static_cast<int>(ressize);
}
@ -994,13 +994,12 @@ static int s3fs_create(const char* _path, mode_t mode, struct fuse_file_info* fi
AutoFdEntity autoent;
FdEntity* ent;
if(NULL == (ent = autoent.Open(path, &meta, 0, -1, false, true))){
if(NULL == (ent = autoent.Open(path, &meta, 0, -1, fi->flags, false, true))){
StatCache::getStatCacheData()->DelStat(path);
return -EIO;
}
ent->MarkDirtyNewFile();
autoent.Detach(); // KEEP fdentity open
fi->fh = ent->GetFd();
fi->fh = autoent.Detach(); // KEEP fdentity open;
S3FS_MALLOCTRIM(0);
@ -1191,19 +1190,25 @@ static int s3fs_symlink(const char* _from, const char* _to)
{ // scope for AutoFdEntity
AutoFdEntity autoent;
FdEntity* ent;
if(NULL == (ent = autoent.Open(to, &headers, 0, -1, true, true))){
if(NULL == (ent = autoent.Open(to, &headers, 0, -1, O_RDWR, true, true))){
S3FS_PRN_ERR("could not open tmpfile(errno=%d)", errno);
return -errno;
}
// write(without space words)
strFrom = trim(std::string(from));
ssize_t from_size = static_cast<ssize_t>(strFrom.length());
if(from_size != ent->Write(strFrom.c_str(), 0, from_size)){
S3FS_PRN_ERR("could not write tmpfile(errno=%d)", errno);
return -errno;
ssize_t ressize;
if(from_size != (ressize = ent->Write(autoent.GetPseudoFd(), strFrom.c_str(), 0, from_size))){
if(ressize < 0){
S3FS_PRN_ERR("could not write tmpfile(errno=%d)", static_cast<int>(ressize));
return static_cast<int>(ressize);
}else{
S3FS_PRN_ERR("could not write tmpfile %zd byte(errno=%d)", ressize, errno);
return (0 == errno ? -EIO : -errno);
}
}
// upload
if(0 != (result = ent->Flush(true))){
if(0 != (result = ent->Flush(autoent.GetPseudoFd(), true))){
S3FS_PRN_WARN("could not upload tmpfile(result=%d)", result);
}
}
@ -1254,11 +1259,11 @@ static int rename_object(const char* from, const char* to, bool update_ctime)
// update time
AutoFdEntity autoent;
FdEntity* ent;
if(NULL == (ent = autoent.ExistOpen(from, -1, !FdManager::IsCacheDir()))){
if(NULL == (ent = autoent.OpenExistFdEntiy(from))){
// no opened fd
if(FdManager::IsCacheDir()){
// create cache file if be needed
ent = autoent.Open(from, &meta, buf.st_size, -1, false, true);
ent = autoent.Open(from, &meta, buf.st_size, -1, O_RDONLY, false, true);
}
if(ent){
struct timespec mtime = get_mtime(meta);
@ -1317,7 +1322,7 @@ static int rename_object_nocopy(const char* from, const char* to, bool update_ct
{ // scope for AutoFdEntity
AutoFdEntity autoent;
FdEntity* ent;
if(0 != (result = get_local_fent(autoent, &ent, from, true))){
if(0 != (result = get_local_fent(autoent, &ent, from, O_RDWR, true))){
S3FS_PRN_ERR("could not open and read file(%s)", from);
return result;
}
@ -1335,7 +1340,7 @@ static int rename_object_nocopy(const char* from, const char* to, bool update_ct
}
// upload
if(0 != (result = ent->RowFlush(to, true))){
if(0 != (result = ent->RowFlush(autoent.GetPseudoFd(), to, true))){
S3FS_PRN_ERR("could not upload file(%s): result=%d", to, result);
return result;
}
@ -1573,8 +1578,8 @@ static int s3fs_rename(const char* _from, const char* _to)
{ // scope for AutoFdEntity
AutoFdEntity autoent;
FdEntity* ent;
if(NULL != (ent = autoent.ExistOpen(from))){
if(0 != (result = ent->Flush(true))){
if(NULL != (ent = autoent.OpenExistFdEntiy(from, O_RDWR))){
if(0 != (result = ent->Flush(autoent.GetPseudoFd(), true))){
S3FS_PRN_ERR("could not upload file(%s): result=%d", to, result);
return result;
}
@ -1673,7 +1678,7 @@ static int s3fs_chmod(const char* _path, mode_t mode)
AutoFdEntity autoent;
FdEntity* ent;
bool need_put_header = true;
if(NULL != (ent = autoent.ExistOpen(path, -1, true))){
if(NULL != (ent = autoent.OpenExistFdEntiy(path))){
if(ent->MergeOrgMeta(updatemeta)){
// meta is changed, but now uploading.
// then the meta is pending and accumulated to be put after the upload is complete.
@ -1755,7 +1760,7 @@ static int s3fs_chmod_nocopy(const char* _path, mode_t mode)
// open & load
AutoFdEntity autoent;
FdEntity* ent;
if(0 != (result = get_local_fent(autoent, &ent, strpath.c_str(), true))){
if(0 != (result = get_local_fent(autoent, &ent, strpath.c_str(), O_RDWR, true))){
S3FS_PRN_ERR("could not open and read file(%s)", strpath.c_str());
return result;
}
@ -1767,7 +1772,7 @@ static int s3fs_chmod_nocopy(const char* _path, mode_t mode)
ent->SetMode(mode);
// upload
if(0 != (result = ent->Flush(true))){
if(0 != (result = ent->Flush(autoent.GetPseudoFd(), true))){
S3FS_PRN_ERR("could not upload file(%s): result=%d", strpath.c_str(), result);
return result;
}
@ -1850,7 +1855,7 @@ static int s3fs_chown(const char* _path, uid_t uid, gid_t gid)
AutoFdEntity autoent;
FdEntity* ent;
bool need_put_header = true;
if(NULL != (ent = autoent.ExistOpen(path, -1, true))){
if(NULL != (ent = autoent.OpenExistFdEntiy(path))){
if(ent->MergeOrgMeta(updatemeta)){
// meta is changed, but now uploading.
// then the meta is pending and accumulated to be put after the upload is complete.
@ -1939,7 +1944,7 @@ static int s3fs_chown_nocopy(const char* _path, uid_t uid, gid_t gid)
// open & load
AutoFdEntity autoent;
FdEntity* ent;
if(0 != (result = get_local_fent(autoent, &ent, strpath.c_str(), true))){
if(0 != (result = get_local_fent(autoent, &ent, strpath.c_str(), O_RDWR, true))){
S3FS_PRN_ERR("could not open and read file(%s)", strpath.c_str());
return result;
}
@ -1952,7 +1957,7 @@ static int s3fs_chown_nocopy(const char* _path, uid_t uid, gid_t gid)
ent->SetGId(gid);
// upload
if(0 != (result = ent->Flush(true))){
if(0 != (result = ent->Flush(autoent.GetPseudoFd(), true))){
S3FS_PRN_ERR("could not upload file(%s): result=%d", strpath.c_str(), result);
return result;
}
@ -2032,7 +2037,7 @@ static int s3fs_utimens(const char* _path, const struct timespec ts[2])
FdEntity* ent;
bool need_put_header = true;
bool keep_mtime = false;
if(NULL != (ent = autoent.ExistOpen(path, -1, true))){
if(NULL != (ent = autoent.OpenExistFdEntiy(path))){
if(ent->MergeOrgMeta(updatemeta)){
// meta is changed, but now uploading.
// then the meta is pending and accumulated to be put after the upload is complete.
@ -2131,7 +2136,7 @@ static int s3fs_utimens_nocopy(const char* _path, const struct timespec ts[2])
// open & load
AutoFdEntity autoent;
FdEntity* ent;
if(0 != (result = get_local_fent(autoent, &ent, strpath.c_str(), true))){
if(0 != (result = get_local_fent(autoent, &ent, strpath.c_str(), O_RDWR, true))){
S3FS_PRN_ERR("could not open and read file(%s)", strpath.c_str());
return result;
}
@ -2149,7 +2154,7 @@ static int s3fs_utimens_nocopy(const char* _path, const struct timespec ts[2])
}
// upload
if(0 != (result = ent->Flush(true))){
if(0 != (result = ent->Flush(autoent.GetPseudoFd(), true))){
S3FS_PRN_ERR("could not upload file(%s): result=%d", strpath.c_str(), result);
return result;
}
@ -2184,7 +2189,7 @@ static int s3fs_truncate(const char* _path, off_t size)
// Get file information
if(0 == (result = get_object_attribute(path, NULL, &meta))){
// Exists -> Get file(with size)
if(NULL == (ent = autoent.Open(path, &meta, size, -1, false, true))){
if(NULL == (ent = autoent.Open(path, &meta, size, -1, O_RDWR, false, true))){
S3FS_PRN_ERR("could not open file(%s): errno=%d", path, errno);
return -EIO;
}
@ -2209,14 +2214,14 @@ static int s3fs_truncate(const char* _path, off_t size)
meta["x-amz-meta-uid"] = str(pcxt->uid);
meta["x-amz-meta-gid"] = str(pcxt->gid);
if(NULL == (ent = autoent.Open(path, &meta, size, -1, true, true))){
if(NULL == (ent = autoent.Open(path, &meta, size, -1, O_RDWR, true, true))){
S3FS_PRN_ERR("could not open file(%s): errno=%d", path, errno);
return -EIO;
}
}
// upload
if(0 != (result = ent->Flush(true))){
if(0 != (result = ent->Flush(autoent.GetPseudoFd(), true))){
S3FS_PRN_ERR("could not upload file(%s): result=%d", path, result);
return result;
}
@ -2247,11 +2252,7 @@ static int s3fs_open(const char* _path, struct fuse_file_info* fi)
// and only the Stats cache exists.
//
if(StatCache::getStatCacheData()->HasStat(path)){
AutoFdEntity autoent_local;
if(NULL == autoent_local.ExistOpen(path, -1, true)){
if((result = s3fs_flush(_path, fi)) != 0){
S3FS_PRN_ERR("could not flush(%s): result=%d", path, result);
}
if(!FdManager::HasOpenEntityFd(path)){
StatCache::getStatCacheData()->DelStat(path);
}
}
@ -2284,7 +2285,7 @@ static int s3fs_open(const char* _path, struct fuse_file_info* fi)
FdEntity* ent;
headers_t meta;
get_object_attribute(path, NULL, &meta, true, NULL, true); // no truncate cache
if(NULL == (ent = autoent.Open(path, &meta, st.st_size, st.st_mtime, false, true))){
if(NULL == (ent = autoent.Open(path, &meta, st.st_size, st.st_mtime, fi->flags, false, true))){
StatCache::getStatCacheData()->DelStat(path);
return -EIO;
}
@ -2293,14 +2294,13 @@ static int s3fs_open(const char* _path, struct fuse_file_info* fi)
time_t now = time(NULL);
struct timespec ts = {now, 0};
ent->SetMCtime(ts, ts);
if(0 != (result = ent->RowFlush(path, true))){
if(0 != (result = ent->RowFlush(autoent.GetPseudoFd(), path, true))){
S3FS_PRN_ERR("could not upload file(%s): result=%d", path, result);
StatCache::getStatCacheData()->DelStat(path);
return result;
}
}
autoent.Detach(); // KEEP fdentity open
fi->fh = ent->GetFd();
fi->fh = autoent.Detach(); // KEEP fdentity open;
S3FS_MALLOCTRIM(0);
@ -2316,13 +2316,10 @@ static int s3fs_read(const char* _path, char* buf, size_t size, off_t offset, st
AutoFdEntity autoent;
FdEntity* ent;
if(NULL == (ent = autoent.ExistOpen(path, static_cast<int>(fi->fh)))){
if(NULL == (ent = autoent.GetExistFdEntiy(path, static_cast<int>(fi->fh)))){
S3FS_PRN_ERR("could not find opened fd(%s)", path);
return -EIO;
}
if(ent->GetFd() != static_cast<int>(fi->fh)){
S3FS_PRN_WARN("different fd(%d - %llu)", ent->GetFd(), (unsigned long long)(fi->fh));
}
// check real file size
off_t realsize = 0;
@ -2331,7 +2328,7 @@ static int s3fs_read(const char* _path, char* buf, size_t size, off_t offset, st
return 0;
}
if(0 > (res = ent->Read(buf, offset, size, false))){
if(0 > (res = ent->Read(static_cast<int>(fi->fh), buf, offset, size, false))){
S3FS_PRN_WARN("failed to read file(%s). result=%zd", path, res);
}
@ -2347,20 +2344,18 @@ static int s3fs_write(const char* _path, const char* buf, size_t size, off_t off
AutoFdEntity autoent;
FdEntity* ent;
if(NULL == (ent = autoent.ExistOpen(path, static_cast<int>(fi->fh)))){
if(NULL == (ent = autoent.GetExistFdEntiy(path, static_cast<int>(fi->fh)))){
S3FS_PRN_ERR("could not find opened fd(%s)", path);
return -EIO;
}
if(ent->GetFd() != static_cast<int>(fi->fh)){
S3FS_PRN_WARN("different fd(%d - %llu)", ent->GetFd(), (unsigned long long)(fi->fh));
}
if(0 > (res = ent->Write(buf, offset, size))){
if(0 > (res = ent->Write(static_cast<int>(fi->fh), buf, offset, size))){
S3FS_PRN_WARN("failed to write file(%s). result=%zd", path, res);
}
if(max_dirty_data != -1 && ent->BytesModified() >= max_dirty_data){
int flushres;
if(0 != (flushres = ent->RowFlush(path, true))){
if(0 != (flushres = ent->RowFlush(autoent.GetPseudoFd(), path, true))){
S3FS_PRN_ERR("could not upload file(%s): result=%d", path, flushres);
StatCache::getStatCacheData()->DelStat(path);
return flushres;
@ -2408,10 +2403,10 @@ static int s3fs_flush(const char* _path, struct fuse_file_info* fi)
AutoFdEntity autoent;
FdEntity* ent;
if(NULL != (ent = autoent.ExistOpen(path, static_cast<int>(fi->fh)))){
if(NULL != (ent = autoent.GetExistFdEntiy(path, static_cast<int>(fi->fh)))){
ent->UpdateMtime(true); // clear the flag not to update mtime.
ent->UpdateCtime();
result = ent->Flush(false);
result = ent->Flush(static_cast<int>(fi->fh), false);
StatCache::getStatCacheData()->DelStat(path);
}
S3FS_MALLOCTRIM(0);
@ -2431,12 +2426,12 @@ static int s3fs_fsync(const char* _path, int datasync, struct fuse_file_info* fi
AutoFdEntity autoent;
FdEntity* ent;
if(NULL != (ent = autoent.ExistOpen(path, static_cast<int>(fi->fh)))){
if(NULL != (ent = autoent.GetExistFdEntiy(path, static_cast<int>(fi->fh)))){
if(0 == datasync){
ent->UpdateMtime();
ent->UpdateCtime();
}
result = ent->Flush(false);
result = ent->Flush(static_cast<int>(fi->fh), false);
}
S3FS_MALLOCTRIM(0);
@ -2468,29 +2463,21 @@ static int s3fs_release(const char* _path, struct fuse_file_info* fi)
{ // scope for AutoFdEntity
AutoFdEntity autoent;
FdEntity* ent;
// [NOTE]
// The number of references to fdEntity corresponding to fi-> fh is already incremented
// when it is opened. Therefore, when an existing fdEntity is detected here, the reference
// count must not be incremented. And if detected, the number of references incremented
// when opened will be decremented when the AutoFdEntity object is subsequently destroyed.
// The pseudo fd stored in fi->fh is attached to AutoFdEntiry so that it can be
// destroyed here.
//
if(NULL == (ent = autoent.GetFdEntity(path, static_cast<int>(fi->fh), false))){
S3FS_PRN_ERR("could not find fd(file=%s)", path);
if(!autoent.Attach(path, static_cast<int>(fi->fh))){
S3FS_PRN_ERR("could not find pseudo fd(file=%s, fd=%d)", path, static_cast<int>(fi->fh));
return -EIO;
}
if(ent->GetFd() != static_cast<int>(fi->fh)){
S3FS_PRN_WARN("different fd(%d - %llu)", ent->GetFd(), (unsigned long long)(fi->fh));
}
}
// check - for debug
if(S3fsLog::IsS3fsLogDbg()){
AutoFdEntity autoent;
FdEntity* ent;
if(NULL != (ent = autoent.GetFdEntity(path, static_cast<int>(fi->fh)))){
S3FS_PRN_WARN("file(%s),fd(%d) is still opened.", path, ent->GetFd());
if(FdManager::HasOpenEntityFd(path)){
S3FS_PRN_WARN("file(%s) is still opened(another pseudo fd is opend).", path);
}
}
S3FS_MALLOCTRIM(0);
@ -3051,7 +3038,7 @@ static int s3fs_setxattr(const char* path, const char* name, const char* value,
AutoFdEntity autoent;
FdEntity* ent;
bool need_put_header = true;
if(NULL != (ent = autoent.ExistOpen(path, -1, true))){
if(NULL != (ent = autoent.OpenExistFdEntiy(path))){
// get xattr and make new xattr
std::string strxattr;
if(ent->GetXattr(strxattr)){
@ -3338,7 +3325,7 @@ static int s3fs_removexattr(const char* path, const char* name)
AutoFdEntity autoent;
FdEntity* ent;
bool need_put_header = true;
if(NULL != (ent = autoent.ExistOpen(path, -1, true))){
if(NULL != (ent = autoent.OpenExistFdEntiy(path))){
if(ent->MergeOrgMeta(updatemeta)){
// meta is changed, but now uploading.
// then the meta is pending and accumulated to be put after the upload is complete.