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* Added buffer_text_size option to change the size of the buffer for

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things like $exec, $tail, et cetera
* Added $mboxscan which lets you display the Subject and From fields
from recent email in an mbox file
* Disambiguated (is that a word?) $cpu docs


git-svn-id: https://conky.svn.sourceforge.net/svnroot/conky/trunk/conky1@831 7f574dfc-610e-0410-a909-a81674777703
This commit is contained in:
Brenden Matthews 2007-02-12 01:03:10 +00:00
parent b85ae9209b
commit 45acd5c3b9
9 changed files with 348 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
AUTHORS
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@ -31,6 +31,9 @@ Bruce Merry <bmerry at cs dot uct dot ac dot za>
btlee
linkstatus patch (http://forums.gentoo.org/viewtopic-p-2765647.html#2765647)
calmar <mac at calmar dot ws>
mboxscan
dan-h <dan-h at users dot sourceforge dot net>
adt746x fix

7
ChangeLog
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@ -1,5 +1,12 @@
# $Id$
2007-02-11
* Added buffer_text_size option to change the size of the buffer for
things like $exec, $tail, et cetera
* Added $mboxscan which lets you display the Subject and From fields
from recent email in an mbox file
* Disambiguated (is that a word?) $cpu docs
2007-01-14
* Fallback to gettimeofday() when clock_gettime () not available (mac os).

9
doc/config_settings.xml
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@ -172,6 +172,15 @@
<para></para></listitem>
</varlistentry>
<varlistentry>
<term><command><option>text_buffer_size</option></command>
<option>bytes</option>
</term>
<listitem>
Size of the standard text buffer (default is 1280 bytes).
<para></para></listitem>
</varlistentry>
<varlistentry>
<term><command><option>maximum_width</option></command>
<option>pixels</option>

12
doc/variables.xml
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@ -338,7 +338,7 @@
<option>(cpuN)</option>
</term>
<listitem>
CPU usage in percents. For SMP machines, the CPU number can be provided as an argument. ${cpu 0} is the total usage, and ${cpu X} (X >= 1) are individual CPUs.
CPU usage in percents. For SMP machines, the CPU number can be provided as an argument. ${cpu cpu0} is the total usage, and ${cpu cpuX} (X >= 1) are individual CPUs.
<para></para></listitem>
</varlistentry>
@ -967,6 +967,16 @@
<para></para></listitem>
</varlistentry>
<varlistentry>
<term>
<command><option>mboxscan</option></command>
<option>(-n number of messages to print) (-fw from width) (-sw subject width) mbox</option>
</term>
<listitem>
Print a summary of recent messages in an mbox format mailbox. mbox parameter is the filename of the mailbox (can be encapsulated using '"', ie. ${mboxscan -n 10 "/home/brenden/some box"}
<para></para></listitem>
</varlistentry>
<varlistentry>
<term>
<command><option>mem</option></command>

2
src/Makefile.am
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@ -64,6 +64,8 @@ conky_SOURCES = \
$(solaris) \
timed_thread.c \
timed_thread.h \
mboxscan.c \
mboxscan.h \
$(x11) \
$(xmms2)

59
src/conky.c
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@ -322,6 +322,9 @@ static unsigned int max_specials = MAX_SPECIALS_DEFAULT;
/* maximum size of config TEXT buffer, i.e. below TEXT line. */
static unsigned int max_user_text = MAX_USER_TEXT_DEFAULT;
/* maximum size of individual text buffers, ie $exec buffer size */
unsigned int text_buffer_size = TEXT_BUFFER_SIZE;
#ifdef HAVE_ICONV
#define CODEPAGE_LENGTH 20
long iconv_selected;
@ -992,6 +995,7 @@ enum text_object_type {
OBJ_loadavg,
OBJ_machine,
OBJ_mails,
OBJ_mboxscan,
OBJ_mem,
OBJ_membar,
OBJ_memgraph,
@ -1139,6 +1143,11 @@ struct text_object {
unsigned int cpu_index;
struct mail_s *mail;
struct {
char *args;
char *output;
} mboxscan;
struct {
char *tz; /* timezone variable */
char *fmt; /* time display formatting */
@ -1694,7 +1703,7 @@ void *threaded_exec(struct text_object *obj) {
char *p2 = obj->data.texeci.buffer;
FILE *fp = popen(obj->data.texeci.cmd,"r");
timed_thread_lock (obj->data.texeci.p_timed_thread);
int n2 = fread(p2, 1, TEXT_BUFFER_SIZE, fp);
int n2 = fread(p2, 1, text_buffer_size, fp);
(void) pclose(fp);
p2[n2] = '\0';
if (n2 && p2[n2 - 1] == '\n') {
@ -1744,6 +1753,10 @@ static void free_text_objects(unsigned int count, struct text_object *objs)
free(objs[i].data.tztime.tz);
free(objs[i].data.tztime.fmt);
break;
case OBJ_mboxscan:
free(objs[i].data.mboxscan.args);
free(objs[i].data.mboxscan.output);
break;
case OBJ_imap:
free(info.mail);
break;
@ -2287,7 +2300,7 @@ static struct text_object *construct_text_object(const char *s, const char *arg,
} else {
obj->data.execi.cmd = strdup(arg + n);
obj->data.execi.buffer =
(char *) calloc(1, TEXT_BUFFER_SIZE);
(char *) calloc(1, text_buffer_size);
}
END OBJ(texeci, 0) unsigned int n;
if (!arg || sscanf(arg, "%f %n", &obj->data.texeci.interval, &n) <= 0) {
@ -2299,7 +2312,7 @@ static struct text_object *construct_text_object(const char *s, const char *arg,
} else {
obj->data.texeci.cmd = strdup(arg + n);
obj->data.texeci.buffer =
(char *) calloc(1, TEXT_BUFFER_SIZE);
(char *) calloc(1, text_buffer_size);
}
obj->data.texeci.p_timed_thread = NULL;
END OBJ(pre_exec, 0) obj->type = OBJ_text;
@ -2502,7 +2515,7 @@ static struct text_object *construct_text_object(const char *s, const char *arg,
fp = fopen(buf, "r");
if (fp) {
obj->data.tail.logfile =
malloc(TEXT_BUFFER_SIZE);
malloc(text_buffer_size);
strcpy(obj->data.tail.logfile, buf);
obj->data.tail.wantedlines = n1;
obj->data.tail.interval =
@ -2527,7 +2540,7 @@ static struct text_object *construct_text_object(const char *s, const char *arg,
fp = fopen(buf, "r");
if (fp != NULL) {
obj->data.tail.logfile =
malloc(TEXT_BUFFER_SIZE);
malloc(text_buffer_size);
strcpy(obj->data.tail.logfile, buf);
obj->data.tail.wantedlines = n1;
obj->data.tail.interval = n2;
@ -2543,7 +2556,7 @@ static struct text_object *construct_text_object(const char *s, const char *arg,
ERR("invalid args given for tail");
return NULL;
}
obj->data.tail.buffer = malloc(TEXT_BUFFER_SIZE * 20); /* asumming all else worked */
obj->data.tail.buffer = malloc(text_buffer_size * 20); /* asumming all else worked */
END OBJ(head, 0)
char buf[64];
int n1, n2;
@ -2562,7 +2575,7 @@ static struct text_object *construct_text_object(const char *s, const char *arg,
fp = fopen(buf, "r");
if (fp != NULL) {
obj->data.tail.logfile =
malloc(TEXT_BUFFER_SIZE);
malloc(text_buffer_size);
strcpy(obj->data.tail.logfile, buf);
obj->data.tail.wantedlines = n1;
obj->data.tail.interval =
@ -2587,7 +2600,7 @@ static struct text_object *construct_text_object(const char *s, const char *arg,
fp = fopen(buf, "r");
if (fp != NULL) {
obj->data.tail.logfile =
malloc(TEXT_BUFFER_SIZE);
malloc(text_buffer_size);
strcpy(obj->data.tail.logfile, buf);
obj->data.tail.wantedlines = n1;
obj->data.tail.interval = n2;
@ -2603,7 +2616,7 @@ static struct text_object *construct_text_object(const char *s, const char *arg,
ERR("invalid args given for head");
return NULL;
}
obj->data.tail.buffer = malloc(TEXT_BUFFER_SIZE * 20); /* asumming all else worked */
obj->data.tail.buffer = malloc(text_buffer_size * 20); /* asumming all else worked */
END OBJ(loadavg, INFO_LOADAVG) int a = 1, b = 2, c = 3, r = 3;
if (arg) {
r = sscanf(arg, "%d %d %d", &a, &b, &c);
@ -2659,6 +2672,10 @@ static struct text_object *construct_text_object(const char *s, const char *arg,
END OBJ(kernel, 0)
END OBJ(machine, 0)
END OBJ(mails, INFO_MAIL)
END OBJ(mboxscan, 0)
obj->data.mboxscan.args = (char*)malloc(TEXT_BUFFER_SIZE);
obj->data.mboxscan.output = (char*)malloc(text_buffer_size);
strncpy(obj->data.mboxscan.args, arg, TEXT_BUFFER_SIZE);
END OBJ(mem, INFO_MEM)
END OBJ(memmax, INFO_MEM)
END OBJ(memperc, INFO_MEM)
@ -3727,8 +3744,8 @@ static void generate_text_internal(char *p, int p_max_size, struct text_object *
} else {
char *output = obj->data.execi.buffer;
FILE *fp = popen(obj->data.execi.cmd, "r");
//int length = fread(output, 1, TEXT_BUFFER_SIZE, fp);
int length = fread(output, 1, TEXT_BUFFER_SIZE, fp);
//int length = fread(output, 1, text_buffer_size, fp);
int length = fread(output, 1, text_buffer_size, fp);
(void) pclose(fp);
output[length] = '\0';
@ -4164,6 +4181,10 @@ static void generate_text_internal(char *p, int p_max_size, struct text_object *
OBJ(mails) {
snprintf(p, p_max_size, "%d", cur->mail_count);
}
OBJ(mboxscan) {
mbox_scan(obj->data.mboxscan.args, obj->data.mboxscan.output, text_buffer_size);
snprintf(p, p_max_size, "%s", obj->data.mboxscan.output);
}
OBJ(new_mails) {
snprintf(p, p_max_size, "%d", cur->new_mail_count);
}
@ -4677,9 +4698,9 @@ static void generate_text_internal(char *p, int p_max_size, struct text_object *
}
/* Make sure bsize is at least 1 byte smaller than
* the buffer max size. */
if(bsize > TEXT_BUFFER_SIZE*20 - 1) {
fseek(fp, bsize - TEXT_BUFFER_SIZE*20 - 1, SEEK_CUR);
bsize = TEXT_BUFFER_SIZE*20 - 1;
if(bsize > text_buffer_size*20 - 1) {
fseek(fp, bsize - text_buffer_size*20 - 1, SEEK_CUR);
bsize = text_buffer_size*20 - 1;
}
bsize = fread(obj->data.tail.buffer, 1, bsize, fp);
fclose(fp);
@ -4730,8 +4751,8 @@ static void generate_text_internal(char *p, int p_max_size, struct text_object *
obj->data.tail.readlines = iter;
/* Make sure nl is at least 1 byte smaller than
* the buffer max size. */
if(nl > TEXT_BUFFER_SIZE*20 - 1) {
nl = TEXT_BUFFER_SIZE*20 - 1;
if(nl > text_buffer_size*20 - 1) {
nl = text_buffer_size*20 - 1;
}
nl = fread(obj->data.tail.buffer, 1, nl, fp);
fclose(fp);
@ -6735,6 +6756,12 @@ else if (strcasecmp(name, a) == 0 || strcasecmp(name, b) == 0)
else
CONF_ERR;
}
CONF("text_buffer_size") {
if (value)
text_buffer_size = atoi(value);
else
CONF_ERR;
}
CONF("text") {
if (text != original_text)
free(text);

1
src/conky.h
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@ -53,6 +53,7 @@
#define TEXT_BUFFER_SIZE 1280
#define P_MAX_SIZE ((TEXT_BUFFER_SIZE * 4) - 2)
extern unsigned int text_buffer_size;
/* maximum number of special things, e.g. fonts, offsets, aligns, etc. */
#define MAX_SPECIALS_DEFAULT 512

262
src/mboxscan.c Normal file
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@ -0,0 +1,262 @@
/*
* $Id$
*
* Licence: http://www.opensource.org/licenses/bsd-license.php
* author: mac@calmar.ws
*
* Modified for use in Conky by Brenden Matthews
*
* Description:
* scanning from top to bottom on a mbox
* The output as follows:
* F: FROM_LENGHT S: SUBJECT_LENGHT
* (PRINT_MAILS or -n NR times)
*/
#include "conky.h"
#include <sys/stat.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "mboxscan.h"
#define FROM_WIDTH 10
#define SUBJECT_WIDTH 22
#define PRINT_MAILS 5
struct ring_list {
char *from;
char *subject;
struct ring_list *previous;
struct ring_list *next;
};
void mbox_scan(char *args, char *output, size_t max_len)
{
int i, u, flag;
int from_width, subject_width, print_mails;
char buf[text_buffer_size];
char *substr = strstr(args, "-n");
if (substr) {
if (sscanf(substr, "-n %i", &print_mails) != 1) {
print_mails = PRINT_MAILS;
}
} else {
print_mails = PRINT_MAILS;
}
substr = strstr(args, "-fw");
if (substr) {
if (sscanf(substr, "-fw %i", &from_width) != 1) {
from_width = FROM_WIDTH;
}
} else {
from_width = FROM_WIDTH;
}
substr = strstr(args, "-sw");
if (substr) {
if (sscanf(substr, "-sw %i", &subject_width) != 1) {
subject_width = SUBJECT_WIDTH;
}
} else {
subject_width = SUBJECT_WIDTH;
}
char current_mail_spool[text_buffer_size];
if (args[strlen(args) - 1] == '"') { // encapsulated with "'s
// find first occurrence of "
strncpy(current_mail_spool, args, text_buffer_size);
char *start = strchr(current_mail_spool, '"') + 1;
start[(long)(strrchr(current_mail_spool, '"') - start)] = '\0';
strncpy(current_mail_spool, start, text_buffer_size);
} else {
char *tmp = strtok(args, " ");
char *start = tmp;
while (tmp) {
tmp = strtok(NULL, " ");
if (tmp) {
start = tmp;
}
}
strncpy(current_mail_spool, start, text_buffer_size);
}
//printf("'%s', %i, %i, %i\n", current_mail_spool, subject_width, from_width, print_mails);
if (strlen(current_mail_spool) < 1) {
CRIT_ERR("Usage: ${mboxscan [-n <number of messages to print>] [-fw <from width>] [-sw <subject width>] mbox}");
}
struct stat statbuf;
if (stat(current_mail_spool, &statbuf)) {
CRIT_ERR("can't stat %s: %s", current_mail_spool, strerror(errno));
}
/* end - argument checking */
/* build up double-linked ring-list to hold data, while scanning down the mbox */
struct ring_list *curr, *prev, *start;
for (i = 0; i < print_mails; i++) {
curr = (struct ring_list *)malloc(sizeof(struct ring_list));
curr->from = (char *)malloc(sizeof(char[from_width + 1]));
curr->subject = (char *)malloc(sizeof(char[subject_width + 1]));
curr->from[0] = '\0';
curr->subject[0] = '\0';
if (i == 0)
start = curr;
if (i > 0) {
curr->previous = prev;
prev->next = curr;
}
prev = curr;
}
/* connect end to start for an endless loop-ring */
start->previous = curr;
curr->next = start;
/* mbox */
FILE *fp;
fp = fopen(current_mail_spool, "r");
if (!fp) {
return;
}
flag = 1; /* frist find a "From " to set it to 0 for header-sarchings */
while (!feof(fp)) {
if (fgets(buf, text_buffer_size, fp) == NULL)
break;
if (strncmp(buf, "From ", 5) == 0) {
curr = curr->next;
/* skip until \n */
while (strchr(buf, '\n') == NULL && !feof(fp))
fgets(buf, text_buffer_size, fp);
flag = 0; /* in the headers now */
continue;
}
if (flag == 1) { /* in the body, so skip */
continue;
}
if (buf[0] == '\n') {
/* beyond the headers now (empty line), skip until \n */
/* then search for new mail ("From ") */
while (strchr(buf, '\n') == NULL && !feof(fp))
fgets(buf, text_buffer_size, fp);
flag = 1; /* in the body now */
continue;
}
if ((strncmp(buf, "X-Status: ", 10) == 0)
|| (strncmp(buf, "Status: R", 9) == 0)) {
/* Mail was read or something, so skip that message */
flag = 1; /* search for next From */
curr->subject[0] = '0';
curr->from[0] = '0';
curr = curr->previous; /* (will get current again on new 'From ' finding) */
/* Skip until \n */
while (strchr(buf, '\n') == NULL && !feof(fp))
fgets(buf, text_buffer_size, fp);
continue;
}
/* that covers ^From: and ^from: */
if (strncmp(buf + 1, "rom: ", 5) == 0) {
i = 0;
u = 6; /* no "From: " string needed, so skip */
while (1) {
if (buf[u] == '"') { /* no quotes around names */
u++;
continue;
}
if (buf[u] == '<' && i > 1) { /* some are: From: <foo@bar.com> */
curr->from[i] = '\0';
/* skip until \n */
while (strchr(buf, '\n') == NULL && !feof(fp))
fgets(buf, text_buffer_size, fp);
break;
}
if (buf[u] == '\n') {
curr->from[i] = '\0';
break;
}
if (buf[u] == '\0') {
curr->from[i] = '\0';
break;
}
if (i >= from_width) {
curr->from[i] = '\0';
/* skip until \n */
while (strchr(buf, '\n') == NULL && !feof(fp))
fgets(buf, text_buffer_size, fp);
break;
}
/* nothing special so just set it */
curr->from[i++] = buf[u++];
}
}
/* that covers ^Subject and ^subject */
if (strncmp(buf + 1, "ubject: ", 8) == 0) {
i = 0;
u = 9; /* no "Subject: " string needed, so skip */
while (1) {
if (buf[u] == '\n') {
curr->subject[i] = '\0';
break;
}
if (buf[u] == '\0') {
curr->subject[i] = '\0';
break;
}
if (i >= subject_width) {
curr->subject[i] = '\0';
/* skip until \n */
while (strchr(buf, '\n') == NULL && !feof(fp))
fgets(buf, text_buffer_size, fp);
break;
}
/* nothing special so just set it */
curr->subject[i++] = buf[u++];
}
}
}
fclose(fp);
i = print_mails;
output[0] = '\0';
while (curr->from[0] != '\0') {
snprintf(buf, text_buffer_size, "F: %-*s S: %-*s\n", from_width, curr->from, subject_width, curr->subject);
strncat(output, buf, max_len - strlen(output));
/* printf("F: %-*s", from_width, curr->from);
printf(" S: %-*s\n", subject_width, curr->subject);*/
free(curr->from);
free(curr->subject);
struct ring_list *old = curr;
free(old);
curr = curr->previous;
if (--i == 0) {
break;
}
}
}

10
src/mboxscan.h Normal file
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@ -0,0 +1,10 @@
/*
* $Id$
*/
#ifndef _MBOXSCAN_H_
#define _MBOXSCAN_H_
void mbox_scan(char *args, char *output, size_t max_len);
#endif /* _MBOXSCAN_H_ */