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MemoryTracking: adjust initialization calling 

Calling of curl_memdebug() was still done with a pending free()
This commit is contained in:
Yang Tse 2011-08-20 17:26:02 +02:00
parent 2d7c79af76
commit aaab5fa299
4 changed files with 61 additions and 42 deletions
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2
lib/memdebug.c
View File

@ -119,7 +119,7 @@ static long memsize = 0; /* set number of mallocs allowed */
void curl_memdebug(const char *logname)
{
if(!logfile) {
if(logname)
if(logname && *logname)
logfile = fopen(logname, "w");
else
logfile = stderr;

6
lib/memdebug.h
View File

@ -32,14 +32,12 @@
#include <curl/curl.h>
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#define CURL_MT_LOGFNAME_BUFSIZE 512
#define logfile curl_debuglogfile
extern FILE *logfile;

59
src/main.c
View File

@ -4617,6 +4617,38 @@ header_callback(void *ptr, size_t size, size_t nmemb, void *stream)
return cb;
}
#ifdef CURLDEBUG
static void memory_tracking_init(void)
{
char *env;
/* if CURL_MEMDEBUG is set, this starts memory tracking message logging */
env = curlx_getenv("CURL_MEMDEBUG");
if(env) {
/* use the value as file name */
char fname[CURL_MT_LOGFNAME_BUFSIZE];
if(strlen(env) >= CURL_MT_LOGFNAME_BUFSIZE)
env[CURL_MT_LOGFNAME_BUFSIZE-1] = '\0';
strcpy(fname, env);
curl_free(env);
curl_memdebug(fname);
/* this weird stuff here is to make curl_free() get called
before curl_memdebug() as otherwise memory tracking will
log a free() without an alloc! */
}
/* if CURL_MEMLIMIT is set, this enables fail-on-alloc-number-N feature */
env = curlx_getenv("CURL_MEMLIMIT");
if(env) {
char *endptr;
long num = strtol(env, &endptr, 10);
if((endptr != env) && (endptr == env + strlen(env)) && (num > 0))
curl_memlimit(num);
curl_free(env);
}
}
#else
# define memory_tracking_init(x)
#endif
static int
operate(struct Configurable *config, int argc, argv_item_t argv[])
{
@ -4653,32 +4685,11 @@ operate(struct Configurable *config, int argc, argv_item_t argv[])
memset(&heads, 0, sizeof(struct OutStruct));
#ifdef CURLDEBUG
/* this sends all memory debug messages to a logfile named memdump */
env = curlx_getenv("CURL_MEMDEBUG");
if(env) {
/* use the value as file name */
char *s = strdup(env);
curl_free(env);
curl_memdebug(s);
free(s);
/* this weird strdup() and stuff here is to make the curl_free() get
called before the memdebug() as otherwise the memdebug tracing will
with tracing a free() without an alloc! */
}
env = curlx_getenv("CURL_MEMLIMIT");
if(env) {
char *endptr;
long num = strtol(env, &endptr, 10);
if((endptr != env) && (endptr == env + strlen(env)) && (num > 0))
curl_memlimit(num);
curl_free(env);
}
#endif
memory_tracking_init();
/* Initialize curl library - do not call any libcurl functions before.
Note that the CURLDEBUG magic above is an exception, but then that's not
part of the official public API.
Note that the memory_tracking_init() magic above is an exception, but
then that's not part of the official public API.
*/
if(main_init() != CURLE_OK) {
helpf(config->errors, "error initializing curl library\n");

36
tests/libtest/first.c
View File

@ -54,24 +54,25 @@ char **test_argv;
int unitfail; /* for unittests */
#endif
int main(int argc, char **argv)
{
char *URL;
#ifdef CURLDEBUG
/* this sends all memory debug messages to a logfile named memdump */
char *env = curl_getenv("CURL_MEMDEBUG");
static void memory_tracking_init(void)
{
char *env;
/* if CURL_MEMDEBUG is set, this starts memory tracking message logging */
env = curl_getenv("CURL_MEMDEBUG");
if(env) {
/* use the value as file name */
char *s = strdup(env);
char fname[CURL_MT_LOGFNAME_BUFSIZE];
if(strlen(env) >= CURL_MT_LOGFNAME_BUFSIZE)
env[CURL_MT_LOGFNAME_BUFSIZE-1] = '\0';
strcpy(fname, env);
curl_free(env);
curl_memdebug(s);
free(s);
/* this weird strdup() and stuff here is to make the curl_free() get
called before the memdebug() as otherwise the memdebug tracing will
with tracing a free() without an alloc! */
curl_memdebug(fname);
/* this weird stuff here is to make curl_free() get called
before curl_memdebug() as otherwise memory tracking will
log a free() without an alloc! */
}
/* this enables the fail-on-alloc-number-N functionality */
/* if CURL_MEMLIMIT is set, this enables fail-on-alloc-number-N feature */
env = curl_getenv("CURL_MEMLIMIT");
if(env) {
char *endptr;
@ -80,8 +81,17 @@ int main(int argc, char **argv)
curl_memlimit(num);
curl_free(env);
}
}
#else
# define memory_tracking_init(x)
#endif
int main(int argc, char **argv)
{
char *URL;
memory_tracking_init();
/*
* Setup proper locale from environment. This is needed to enable locale-
* specific behaviour by the C library in order to test for undesired side