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source reshaped a bit to play well with a bgsaving thread, still work to do, does not compile.

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This commit is contained in:
antirez
2011-01-07 18:15:14 +01:00
parent cb9b35c8ca
commit 36c17a53b6
8 changed files with 103 additions and 54 deletions
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26
src/diskstore.c
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@ -349,11 +349,16 @@ void dsFlushDb(int dbid) {
}
}
int dsRdbSave(char *filename) {
char tmpfile[256];
void *dsRdbSave_thread(void *arg) {
char tmpfile[256], *filename = (char*)arg;
int j, i;
time_t now = time(NULL);
/* Change state to ACTIVE, to signal there is a saving thead working. */
pthread_mutex_lock(&server.bgsavethread_mutex);
server.bgsavethread_state = REDIS_BGSAVE_THREAD_ACTIVE;
pthread_mutex_unlock(&server.bgsavethread_mutex);
snprintf(tmpfile,256,"temp-%d.rdb", (int) getpid());
fp = fopen(tmpfile,"w");
if (!fp) {
@ -377,6 +382,7 @@ int dsRdbSave(char *filename) {
fflush(fp);
fsync(fileno(fp));
fclose(fp);
zfree(filename);
/* Use RENAME to make sure the DB file is changed atomically only
* if the generate DB file is ok. */
@ -386,12 +392,24 @@ int dsRdbSave(char *filename) {
return REDIS_ERR;
}
redisLog(REDIS_NOTICE,"DB saved on disk");
server.dirty = 0;
server.lastsave = time(NULL);
return REDIS_OK;
werr:
zfree(filename);
fclose(fp);
unlink(tmpfile);
redisLog(REDIS_WARNING,"Write error saving DB on disk: %s", strerror(errno));
}
int dsRdbSave(char *filename) {
pthread_t thread;
if (pthread_create(&thread,NULL,dsRdbSave_thread,zstrdup(filename)) != 0) {
redisLog(REDIS_WARNING,"Can't create diskstore BGSAVE thread: %s",
strerror(errno));
return REDIS_ERR;
} else {
server.bgsavethread = thread;
return REDIS_OK;
}
}