| 1 | #include <unistd.h> |
| 2 | #include <fcntl.h> |
| 3 | #include <string.h> |
| 4 | #include <stdarg.h> |
| 5 | #include <syslog.h> |
| 6 | |
| 7 | #include "fio.h" |
| 8 | |
| 9 | size_t log_info_buf(const char *buf, size_t len) |
| 10 | { |
| 11 | /* |
| 12 | * buf could be NULL (not just ""). |
| 13 | */ |
| 14 | if (!buf) |
| 15 | return 0; |
| 16 | |
| 17 | if (is_backend) { |
| 18 | size_t ret = fio_server_text_output(FIO_LOG_INFO, buf, len); |
| 19 | if (ret != -1) |
| 20 | return ret; |
| 21 | } |
| 22 | |
| 23 | if (log_syslog) { |
| 24 | syslog(LOG_INFO, "%s", buf); |
| 25 | return len; |
| 26 | } else |
| 27 | return fwrite(buf, len, 1, f_out); |
| 28 | } |
| 29 | |
| 30 | size_t log_valist(const char *str, va_list args) |
| 31 | { |
| 32 | char buffer[1024]; |
| 33 | size_t len; |
| 34 | |
| 35 | len = vsnprintf(buffer, sizeof(buffer), str, args); |
| 36 | |
| 37 | return log_info_buf(buffer, min(len, sizeof(buffer) - 1)); |
| 38 | } |
| 39 | |
| 40 | size_t log_info(const char *format, ...) |
| 41 | { |
| 42 | char buffer[1024]; |
| 43 | va_list args; |
| 44 | size_t len; |
| 45 | |
| 46 | va_start(args, format); |
| 47 | len = vsnprintf(buffer, sizeof(buffer), format, args); |
| 48 | va_end(args); |
| 49 | |
| 50 | return log_info_buf(buffer, min(len, sizeof(buffer) - 1)); |
| 51 | } |
| 52 | |
| 53 | size_t __log_buf(struct buf_output *buf, const char *format, ...) |
| 54 | { |
| 55 | char buffer[1024]; |
| 56 | va_list args; |
| 57 | size_t len; |
| 58 | |
| 59 | va_start(args, format); |
| 60 | len = vsnprintf(buffer, sizeof(buffer), format, args); |
| 61 | va_end(args); |
| 62 | |
| 63 | return buf_output_add(buf, buffer, min(len, sizeof(buffer) - 1)); |
| 64 | } |
| 65 | |
| 66 | int log_info_flush(void) |
| 67 | { |
| 68 | if (is_backend || log_syslog) |
| 69 | return 0; |
| 70 | |
| 71 | return fflush(f_out); |
| 72 | } |
| 73 | |
| 74 | size_t log_err(const char *format, ...) |
| 75 | { |
| 76 | char buffer[1024]; |
| 77 | va_list args; |
| 78 | size_t len; |
| 79 | |
| 80 | va_start(args, format); |
| 81 | len = vsnprintf(buffer, sizeof(buffer), format, args); |
| 82 | va_end(args); |
| 83 | len = min(len, sizeof(buffer) - 1); |
| 84 | |
| 85 | if (is_backend) { |
| 86 | size_t ret = fio_server_text_output(FIO_LOG_ERR, buffer, len); |
| 87 | if (ret != -1) |
| 88 | return ret; |
| 89 | } |
| 90 | |
| 91 | if (log_syslog) { |
| 92 | syslog(LOG_INFO, "%s", buffer); |
| 93 | return len; |
| 94 | } else { |
| 95 | if (f_err != stderr) { |
| 96 | int fio_unused ret; |
| 97 | |
| 98 | ret = fwrite(buffer, len, 1, stderr); |
| 99 | } |
| 100 | |
| 101 | return fwrite(buffer, len, 1, f_err); |
| 102 | } |
| 103 | } |
| 104 | |
| 105 | const char *log_get_level(int level) |
| 106 | { |
| 107 | static const char *levels[] = { "Unknown", "Debug", "Info", "Error", |
| 108 | "Unknown" }; |
| 109 | |
| 110 | if (level >= FIO_LOG_NR) |
| 111 | level = FIO_LOG_NR; |
| 112 | |
| 113 | return levels[level]; |
| 114 | } |