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Code Issues Releases Activity

preliminary threading changes

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git-svn-id: https://conky.svn.sourceforge.net/svnroot/conky/trunk/conky@518 7f574dfc-610e-0410-a909-a81674777703
This commit is contained in:
Brenden Matthews 2006-01-28 22:13:23 +00:00
parent 778823cee3
commit e085a14b9a
1 changed files with 77 additions and 20 deletions
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97
src/conky.c
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@ -214,9 +214,6 @@ static int fork_to_background;
static int cpu_avg_samples, net_avg_samples;
pthread_mutex_t mutex1 = PTHREAD_MUTEX_INITIALIZER;
pthread_t execthread = (pthread_t)0;
#ifdef X11
/* Always on bottom */
@ -410,7 +407,7 @@ static int special_index; /* used when drawing */
static struct special_t *new_special(char *buf, int t)
{
if (special_count >= 128)
if (special_count >= 256)
CRIT_ERR("too many special things in text");
buf[0] = SPECIAL_CHAR;
@ -920,6 +917,11 @@ enum text_object_type {
#endif
};
struct thread_info_s {
pthread_mutex_t mutex;
pthread_t thread;
};
struct text_object {
int type;
int a, b;
@ -973,6 +975,8 @@ struct text_object {
char *cmd;
char *buffer;
double data;
int pos;
struct thread_info_s thread_info;
} execi; /* 5 */
struct {
@ -998,8 +1002,59 @@ static unsigned int text_object_count;
static struct text_object *text_objects;
static void generate_text_internal(char *p, int p_max_size, struct text_object *objs, unsigned int object_count, struct information *cur);
void *threaded_exec( struct text_object *obj ) {
pthread_mutex_lock( &mutex1 );
#define MAX_THREADS 512 // sure whatever
typedef struct thread_info_s *thread_info;
thread_info thread_list[MAX_THREADS];
int thread_count = 0;
int register_thread(struct thread_info_s *new_thread)
{
if (thread_count >= MAX_THREADS) {
CRIT_ERR("Uh oh, tried to register too many threads");
} else {
thread_list[thread_count] = new_thread;
thread_count++;
}
return thread_count - 1;
}
void print_shit()
{
int i;
for (i = 0; i < thread_count; i++) {
printf("thread is %i\n", (int)(thread_list[i])->thread);
}
}
void replace_thread(struct thread_info_s *new_thread, int pos)
{
if (pos >= 0 && pos < MAX_THREADS) {
thread_list[pos] = new_thread;
} else {
ERR("thread position out of bounds");
}
}
void join_all_threads()
{
int i;
// now we wait to get the locks
for (i = 0; i < thread_count; i++) {
// try to lock mutex
if (thread_list[i]) {
if (thread_list[i]->thread) {
printf("thread is %i\n", (int)thread_list[i]->thread);
/* pthread_mutex_lock(&(thread_list[i]->mutex));
if (pthread_join(thread_list[i]->thread, NULL))
ERR("Problem joining thread %i\n", (int)thread_list[i]->thread);*/
}
}
}
}
void *threaded_exec(struct text_object *obj) {
pthread_mutex_lock(&(obj->data.execi.thread_info.mutex));
char *p2 = obj->data.execi.buffer;
FILE *fp = popen(obj->data.execi.cmd,"r");
int n2 = fread(p2, 1, TEXT_BUFFER_SIZE, fp);
@ -1014,7 +1069,7 @@ void *threaded_exec( struct text_object *obj ) {
p2++;
}
obj->data.execi.last_update = current_update_time;
pthread_mutex_unlock( &mutex1 );
pthread_mutex_unlock(&(obj->data.execi.thread_info.mutex));
pthread_exit(NULL);
}
@ -1314,8 +1369,7 @@ static struct text_object *construct_text_object(const char *s, const char *arg,
}
END OBJ(texeci, 0) unsigned int n;
if (!arg
|| sscanf(arg, "%f %n", &obj->data.execi.interval, &n) <= 0) {
if (!arg || sscanf(arg, "%f %n", &obj->data.execi.interval, &n) <= 0) {
char buf[256];
ERR("${texeci <interval> command}");
obj->type = OBJ_text;
@ -1326,6 +1380,8 @@ static struct text_object *construct_text_object(const char *s, const char *arg,
obj->data.execi.buffer =
(char *) calloc(1, TEXT_BUFFER_SIZE);
}
pthread_mutex_init(&(obj->data.execi.thread_info.mutex), NULL);
obj->data.execi.pos = register_thread(&(obj->data.execi.thread_info));
END OBJ(pre_exec, 0) obj->type = OBJ_text;
if (arg) {
FILE *fp = popen(arg, "r");
@ -2536,19 +2592,19 @@ static void generate_text_internal(char *p, int p_max_size, struct text_object *
if (current_update_time - obj->data.execi.last_update < obj->data.execi.interval) {
snprintf(p, p_max_size, "%s", obj->data.execi.buffer);
} else {
if (!execthread && !pthread_mutex_trylock(&mutex1)) {
if (!obj->data.execi.thread_info.thread && !pthread_mutex_trylock(&(obj->data.execi.thread_info.mutex))) {
if (pthread_create(&execthread, NULL, (void*)threaded_exec, (void*) obj)) {
if (pthread_create(&(obj->data.execi.thread_info.thread), NULL, (void*)threaded_exec, (void*) obj)) {
ERR("Error starting thread");
}
pthread_mutex_unlock(&mutex1);
// printf("thread is %i\n", (int)obj->data.execi.thread_info.thread);
pthread_mutex_unlock(&(obj->data.execi.thread_info.mutex));
}
snprintf(p, p_max_size, "%s", obj->data.execi.buffer);
}
if (!pthread_mutex_trylock(&mutex1)) {
// pthread_join(execthread, NULL);
execthread = (pthread_t)0;
pthread_mutex_unlock(&mutex1);
if (!pthread_mutex_trylock(&(obj->data.execi.thread_info.mutex))) {
obj->data.execi.thread_info.thread = (pthread_t)0;
pthread_mutex_unlock(&(obj->data.execi.thread_info.mutex));
}
//parse_conky_vars(obj->data.execi.buffer, p, cur);
}
@ -4273,6 +4329,8 @@ static void main_loop()
info.looped = 0;
while (total_run_times == 0 || info.looped < total_run_times - 1) {
info.looped++;
printf("loop %i:\n", (int)info.looped);
print_shit();
#ifdef SIGNAL_BLOCKING
/* block signals. we will inspect for pending signals later */
@ -4549,7 +4607,7 @@ static void load_config_file(const char *);
/* reload the config file */
void reload_config(void)
{
pthread_mutex_lock(&mutex1);
join_all_threads();
#if defined(XMMS) || defined(BMP) || defined(AUDACIOUS) || defined(INFOPIPE)
if (info.xmms.thread) {
if (destroy_xmms_thread()!=0)
@ -4586,13 +4644,12 @@ void reload_config(void)
text = NULL;
update_text();
}
pthread_mutex_unlock(&mutex1);
thread_count = 0;
}
void clean_up(void)
{
pthread_mutex_lock(&mutex1);
execthread = (pthread_t)0;
join_all_threads();
#ifdef X11
#ifdef XDBE
if (use_xdbe) {