| #include <unistd.h> |
| #include <string.h> |
| #include <stdarg.h> |
| #include <syslog.h> |
| |
| #include "fio.h" |
| #include "oslib/asprintf.h" |
| |
| size_t log_info_buf(const char *buf, size_t len) |
| { |
| /* |
| * buf could be NULL (not just ""). |
| */ |
| if (!buf) |
| return 0; |
| |
| if (is_backend) { |
| size_t ret = fio_server_text_output(FIO_LOG_INFO, buf, len); |
| if (ret != -1) |
| return ret; |
| } |
| |
| if (log_syslog) { |
| syslog(LOG_INFO, "%s", buf); |
| return len; |
| } else |
| return fwrite(buf, len, 1, f_out); |
| } |
| |
| size_t log_valist(const char *fmt, va_list args) |
| { |
| char *buffer; |
| int len; |
| |
| len = vasprintf(&buffer, fmt, args); |
| if (len < 0) |
| return 0; |
| len = log_info_buf(buffer, len); |
| free(buffer); |
| |
| return len; |
| } |
| |
| /* add prefix for the specified type in front of the valist */ |
| void log_prevalist(int type, const char *fmt, va_list args) |
| { |
| char *buf1, *buf2; |
| int len; |
| pid_t pid; |
| |
| pid = gettid(); |
| if (fio_debug_jobp && *fio_debug_jobp != -1U |
| && pid != *fio_debug_jobp) |
| return; |
| |
| len = vasprintf(&buf1, fmt, args); |
| if (len < 0) |
| return; |
| len = asprintf(&buf2, "%-8s %-5u %s", debug_levels[type].name, |
| (int) pid, buf1); |
| free(buf1); |
| if (len < 0) |
| return; |
| len = log_info_buf(buf2, len); |
| free(buf2); |
| } |
| |
| size_t log_info(const char *format, ...) |
| { |
| va_list args; |
| size_t ret; |
| |
| va_start(args, format); |
| ret = log_valist(format, args); |
| va_end(args); |
| |
| return ret; |
| } |
| |
| size_t __log_buf(struct buf_output *buf, const char *format, ...) |
| { |
| char *buffer; |
| va_list args; |
| int len; |
| |
| va_start(args, format); |
| len = vasprintf(&buffer, format, args); |
| va_end(args); |
| if (len < 0) |
| return 0; |
| len = buf_output_add(buf, buffer, len); |
| free(buffer); |
| |
| return len; |
| } |
| |
| int log_info_flush(void) |
| { |
| if (is_backend || log_syslog) |
| return 0; |
| |
| return fflush(f_out); |
| } |
| |
| size_t log_err(const char *format, ...) |
| { |
| size_t ret; |
| int len; |
| char *buffer; |
| va_list args; |
| |
| va_start(args, format); |
| len = vasprintf(&buffer, format, args); |
| va_end(args); |
| if (len < 0) |
| return len; |
| |
| if (is_backend) { |
| ret = fio_server_text_output(FIO_LOG_ERR, buffer, len); |
| if (ret != -1) |
| goto done; |
| } |
| |
| if (log_syslog) { |
| syslog(LOG_INFO, "%s", buffer); |
| ret = len; |
| } else { |
| if (f_err != stderr) |
| ret = fwrite(buffer, len, 1, stderr); |
| |
| ret = fwrite(buffer, len, 1, f_err); |
| } |
| |
| done: |
| free(buffer); |
| return ret; |
| } |
| |
| const char *log_get_level(int level) |
| { |
| static const char *levels[] = { "Unknown", "Debug", "Info", "Error", |
| "Unknown" }; |
| |
| if (level >= FIO_LOG_NR) |
| level = FIO_LOG_NR; |
| |
| return levels[level]; |
| } |