/* Store one log message of give size */
int LogMessage(uint8_t level, char* buf, uint32_t size){
if(size < LOG_BUFFER_SIZE - sizeof(mTail)){
uint32_t buffpos;
uint64_t new_cursor, old_cursor;
mTail tail;
tail.msgsize = size;
tail.tick = __tick;
PLC_GetTime(&tail.time);
/* We cannot increment both msg index and string pointer
in a single atomic operation but we can detect having been interrupted.
So we can try with atomic compare and swap in a loop until operation
succeeds non interrupted */
do{
old_cursor = LogCursor[level];
buffpos = (uint32_t)old_cursor;
tail.msgidx = (old_cursor >> 32);
new_cursor = ((uint64_t)(tail.msgidx + 1)<<32)
| (uint64_t)((buffpos + size + sizeof(mTail)) & LOG_BUFFER_MASK);
}while(AtomicCompareExchange64(
(long long*)&LogCursor[level],
(long long)old_cursor,
(long long)new_cursor)!=(long long)old_cursor);
copy_to_log(level, buffpos, buf, size);
copy_to_log(level, (buffpos + size) & LOG_BUFFER_MASK, &tail, sizeof(mTail));
return 1; /* Success */
}else{
static int run_service_command(struct child_process *cld)
{
argv_array_push(&cld->args, ".");
cld->git_cmd = 1;
cld->err = -1;
if (start_command(cld))
return -1;
close(0);
close(1);
copy_to_log(cld->err);
return finish_command(cld);
}
static int run_service_command(const char **argv)
{
struct child_process cld = CHILD_PROCESS_INIT;
cld.argv = argv;
cld.git_cmd = 1;
cld.err = -1;
if (start_command(&cld))
return -1;
close(0);
close(1);
copy_to_log(cld.err);
return finish_command(&cld);
}
static int run_service_command(const char **argv)
{
struct child_process cld;
memset(&cld, 0, sizeof(cld));
cld.argv = argv;
cld.git_cmd = 1;
cld.err = -1;
if (start_command(&cld))
return -1;
close(0);
close(1);
copy_to_log(cld.err);
return finish_command(&cld);
}