diff options
Diffstat (limited to 'src/spdk/lib/log/log.c')
| -rw-r--r-- | src/spdk/lib/log/log.c | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/src/spdk/lib/log/log.c b/src/spdk/lib/log/log.c new file mode 100644 index 000000000..0ab50d69c --- /dev/null +++ b/src/spdk/lib/log/log.c @@ -0,0 +1,203 @@ +/*- + * BSD LICENSE + * + * Copyright (c) Intel Corporation. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "spdk/stdinc.h" + +#include "spdk_internal/log.h" + +static const char *const spdk_level_names[] = { + [SPDK_LOG_ERROR] = "ERROR", + [SPDK_LOG_WARN] = "WARNING", + [SPDK_LOG_NOTICE] = "NOTICE", + [SPDK_LOG_INFO] = "INFO", + [SPDK_LOG_DEBUG] = "DEBUG", +}; + +#define MAX_TMPBUF 1024 + +static logfunc *g_log = NULL; + +void +spdk_log_open(logfunc *logf) +{ + if (logf) { + g_log = logf; + } else { + openlog("spdk", LOG_PID, LOG_LOCAL7); + } +} + +void +spdk_log_close(void) +{ + if (!g_log) { + closelog(); + } +} + +static void +get_timestamp_prefix(char *buf, int buf_size) +{ + struct tm *info; + char date[24]; + struct timespec ts; + long usec; + + clock_gettime(CLOCK_REALTIME, &ts); + info = localtime(&ts.tv_sec); + usec = ts.tv_nsec / 1000; + if (info == NULL) { + snprintf(buf, buf_size, "[%s.%06ld] ", "unknown date", usec); + return; + } + + strftime(date, sizeof(date), "%Y-%m-%d %H:%M:%S", info); + snprintf(buf, buf_size, "[%s.%06ld] ", date, usec); +} + +void +spdk_log(enum spdk_log_level level, const char *file, const int line, const char *func, + const char *format, ...) +{ + va_list ap; + + va_start(ap, format); + spdk_vlog(level, file, line, func, format, ap); + va_end(ap); +} + +void +spdk_vlog(enum spdk_log_level level, const char *file, const int line, const char *func, + const char *format, va_list ap) +{ + int severity = LOG_INFO; + char buf[MAX_TMPBUF]; + char timestamp[64]; + + if (g_log) { + g_log(level, file, line, func, format, ap); + return; + } + + if (level > g_spdk_log_print_level && level > g_spdk_log_level) { + return; + } + + switch (level) { + case SPDK_LOG_ERROR: + severity = LOG_ERR; + break; + case SPDK_LOG_WARN: + severity = LOG_WARNING; + break; + case SPDK_LOG_NOTICE: + severity = LOG_NOTICE; + break; + case SPDK_LOG_INFO: + case SPDK_LOG_DEBUG: + severity = LOG_INFO; + break; + case SPDK_LOG_DISABLED: + return; + } + + vsnprintf(buf, sizeof(buf), format, ap); + + if (level <= g_spdk_log_print_level) { + get_timestamp_prefix(timestamp, sizeof(timestamp)); + if (file) { + fprintf(stderr, "%s%s:%4d:%s: *%s*: %s", timestamp, file, line, func, spdk_level_names[level], buf); + } else { + fprintf(stderr, "%s%s", timestamp, buf); + } + } + + if (level <= g_spdk_log_level) { + if (file) { + syslog(severity, "%s:%4d:%s: *%s*: %s", file, line, func, spdk_level_names[level], buf); + } else { + syslog(severity, "%s", buf); + } + } +} + +static void +fdump(FILE *fp, const char *label, const uint8_t *buf, size_t len) +{ + char tmpbuf[MAX_TMPBUF]; + char buf16[16 + 1]; + size_t total; + unsigned int idx; + + fprintf(fp, "%s\n", label); + + memset(buf16, 0, sizeof buf16); + total = 0; + for (idx = 0; idx < len; idx++) { + if (idx != 0 && idx % 16 == 0) { + snprintf(tmpbuf + total, sizeof tmpbuf - total, + " %s", buf16); + memset(buf16, 0, sizeof buf16); + fprintf(fp, "%s\n", tmpbuf); + total = 0; + } + if (idx % 16 == 0) { + total += snprintf(tmpbuf + total, sizeof tmpbuf - total, + "%08x ", idx); + } + if (idx % 8 == 0) { + total += snprintf(tmpbuf + total, sizeof tmpbuf - total, + "%s", " "); + } + total += snprintf(tmpbuf + total, sizeof tmpbuf - total, + "%2.2x ", buf[idx] & 0xff); + buf16[idx % 16] = isprint(buf[idx]) ? buf[idx] : '.'; + } + for (; idx % 16 != 0; idx++) { + if (idx == 8) { + total += snprintf(tmpbuf + total, sizeof tmpbuf - total, + " "); + } + + total += snprintf(tmpbuf + total, sizeof tmpbuf - total, " "); + } + snprintf(tmpbuf + total, sizeof tmpbuf - total, " %s", buf16); + fprintf(fp, "%s\n", tmpbuf); + fflush(fp); +} + +void +spdk_log_dump(FILE *fp, const char *label, const void *buf, size_t len) +{ + fdump(fp, label, buf, len); +} |