static void log_print_all(void *tinst) {
struct statistics_controller *c = tinst;
struct log_print_cell_data data;
int y, ylimit;
top_globalstats_iterate(c->globalstats, log_print_globalstats, NULL);
putchar('\n');
log_print_header(tinst);
putchar('\n');
data.x = 0;
data.xoffset = /*padding*/ 0;
data.have_limit = top_prefs_get_ncols(&data.ncols);
data.column = 0;
data.row = 0;
ylimit = log_get_total(tinst);
for(y = 0; y < ylimit; ++y) {
data.x = 0;
data.xoffset = 0;
data.column = 0;
c->iterate(c, log_print_cell, &data);
data.row++;
putchar('\n');
}
}
static int log_open(LogContext *pContext)
{
int result;
if ((pContext->log_fd = open(pContext->log_filename, O_WRONLY | \
O_CREAT | O_APPEND | pContext->fd_flags, 0644)) < 0)
{
fprintf(stderr, "open log file \"%s\" to write fail, " \
"errno: %d, error info: %s\n", \
pContext->log_filename, errno, STRERROR(errno));
pContext->log_fd = STDERR_FILENO;
return errno != 0 ? errno : EACCES;
}
if (pContext->use_file_write_lock) {
if ((result=file_try_write_lock(pContext->log_fd)) != 0) {
close(pContext->log_fd);
pContext->log_fd = STDERR_FILENO;
return result;
}
}
if (pContext->take_over_stderr) {
if (dup2(pContext->log_fd, STDERR_FILENO) < 0) {
fprintf(stderr, "file: "__FILE__", line: %d, "
"call dup2 fail, errno: %d, error info: %s\n",
__LINE__, errno, STRERROR(errno));
}
}
if (pContext->take_over_stdout) {
if (dup2(pContext->log_fd, STDOUT_FILENO) < 0) {
fprintf(stderr, "file: "__FILE__", line: %d, "
"call dup2 fail, errno: %d, error info: %s\n",
__LINE__, errno, STRERROR(errno));
}
}
pContext->current_size = lseek(pContext->log_fd, 0, SEEK_END);
if (pContext->current_size < 0)
{
fprintf(stderr, "lseek file \"%s\" fail, " \
"errno: %d, error info: %s\n", \
pContext->log_filename, errno, STRERROR(errno));
return errno != 0 ? errno : EACCES;
}
if (pContext->current_size == 0 && pContext->print_header_callback != NULL)
{
log_print_header(pContext);
}
return 0;
}
void log_set_header_callback(LogContext *pContext, LogHeaderCallback header_callback)
{
pContext->print_header_callback = header_callback;
if (pContext->print_header_callback != NULL)
{
int64_t current_size;
pthread_mutex_lock(&(pContext->log_thread_lock));
current_size = pContext->current_size;
pthread_mutex_unlock(&(pContext->log_thread_lock));
if (current_size == 0)
{
log_print_header(pContext);
}
}
}
