X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fcommon%2Ferror.c;h=82190b9fd527cea831f61e9620b43f73d1984c17;hp=a8256ff101ba3ed9d8fc8be5d56651c02c484af2;hb=f5fb86c1254b785eee8caf87cb996d33eda0ede9;hpb=504521ea8462dbd9c188a59c4d04a1f5a0c4c537 diff --git a/src/common/error.c b/src/common/error.c index a8256ff10..82190b9fd 100644 --- a/src/common/error.c +++ b/src/common/error.c @@ -1,29 +1,21 @@ /* - * Copyright (C) 2012 - David Goulet + * Copyright (C) 2012 David Goulet * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License, version 2 only, as - * published by the Free Software Foundation. + * SPDX-License-Identifier: GPL-2.0-only * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., 51 - * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #define _LGPL_SOURCE #include +#include #include +#include #include #include -#include #include #include +#include #include "error.h" @@ -37,6 +29,7 @@ static int lttng_opt_abort_on_error = -1; /* TLS variable that contains the time of one single log entry. */ DEFINE_URCU_TLS(struct log_time, error_log_time); +DEFINE_URCU_TLS(const char *, logger_thread_name); LTTNG_HIDDEN const char *log_add_time(void) @@ -45,6 +38,7 @@ const char *log_add_time(void) struct tm tm, *res; struct timespec tp; time_t now; + const int errsv = errno; ret = lttng_clock_gettime(CLOCK_REALTIME, &tp); if (ret < 0) { @@ -65,13 +59,39 @@ const char *log_add_time(void) goto error; } + errno = errsv; return URCU_TLS(error_log_time).str; error: /* Return an empty string on error so logging is not affected. */ + errno = errsv; return ""; } +LTTNG_HIDDEN +void logger_set_thread_name(const char *name, bool set_pthread_name) +{ + int ret; + + assert(name); + URCU_TLS(logger_thread_name) = name; + + if (set_pthread_name) { + char pthread_name[16]; + + /* + * Truncations are expected since pthread limits thread names to + * a generous 16 characters. + */ + strncpy(pthread_name, name, sizeof(pthread_name)); + pthread_name[sizeof(pthread_name) - 1] = '\0'; + ret = pthread_setname_np(pthread_self(), pthread_name); + if (ret) { + DBG("Failed to set pthread name attribute"); + } + } +} + /* * Human readable error message. */ @@ -175,8 +195,8 @@ static const char *error_string_array[] = { [ ERROR_INDEX(LTTNG_ERR_MI_NOT_IMPLEMENTED) ] = "Mi feature not implemented", [ ERROR_INDEX(LTTNG_ERR_INVALID_EVENT_NAME) ] = "Invalid event name", [ ERROR_INDEX(LTTNG_ERR_INVALID_CHANNEL_NAME) ] = "Invalid channel name", - [ ERROR_INDEX(LTTNG_ERR_PID_TRACKED) ] = "PID already tracked", - [ ERROR_INDEX(LTTNG_ERR_PID_NOT_TRACKED) ] = "PID not tracked", + [ ERROR_INDEX(LTTNG_ERR_PROCESS_ATTR_EXISTS) ] = "Process attribute is already tracked", + [ ERROR_INDEX(LTTNG_ERR_PROCESS_ATTR_MISSING) ] = "Process attribute was not tracked", [ ERROR_INDEX(LTTNG_ERR_INVALID_CHANNEL_DOMAIN) ] = "Invalid channel domain", [ ERROR_INDEX(LTTNG_ERR_OVERFLOW) ] = "Overflow occurred", [ ERROR_INDEX(LTTNG_ERR_SESSION_NOT_STARTED) ] = "Session not started", @@ -192,14 +212,39 @@ static const char *error_string_array[] = { [ ERROR_INDEX(LTTNG_ERR_COMMAND_CANCELLED) ] = "Command cancelled", [ ERROR_INDEX(LTTNG_ERR_ROTATION_PENDING) ] = "Rotation already pending for this session", [ ERROR_INDEX(LTTNG_ERR_ROTATION_NOT_AVAILABLE) ] = "Rotation feature not available for this session's creation mode", - [ ERROR_INDEX(LTTNG_ERR_ROTATION_TIMER_SET) ] = "Automatic timer-based rotation schedule already set for this session", - [ ERROR_INDEX(LTTNG_ERR_ROTATION_SIZE_SET) ] = "Automatic size-based rotation schedule already set for this session", - [ ERROR_INDEX(LTTNG_ERR_ROTATION_NO_TIMER_SET) ] = "No automatic timer-based rotation schedule set for this session", - [ ERROR_INDEX(LTTNG_ERR_ROTATION_NO_SIZE_SET) ] = "No automatic size-based rotation schedule set for this session", + [ ERROR_INDEX(LTTNG_ERR_ROTATION_SCHEDULE_SET) ] = "A session rotation schedule of this type is already set on the session", + [ ERROR_INDEX(LTTNG_ERR_ROTATION_SCHEDULE_NOT_SET) ] = "No session rotation schedule of this type is set on the session", [ ERROR_INDEX(LTTNG_ERR_ROTATION_MULTIPLE_AFTER_STOP) ] = "Session was already rotated once since it became inactive", [ ERROR_INDEX(LTTNG_ERR_ROTATION_WRONG_VERSION) ] = "Session rotation is not supported by this kernel tracer version", [ ERROR_INDEX(LTTNG_ERR_NO_SESSION_OUTPUT) ] = "Session has no output", [ ERROR_INDEX(LTTNG_ERR_ROTATION_NOT_AVAILABLE_RELAY) ] = "Rotation feature not available on the relay", + [ ERROR_INDEX(LTTNG_ERR_AGENT_TRACING_DISABLED) ] = "Session daemon agent tracing is disabled", + [ ERROR_INDEX(LTTNG_ERR_PROBE_LOCATION_INVAL) ] = "Invalid userspace probe location", + [ ERROR_INDEX(LTTNG_ERR_ELF_PARSING) ] = "ELF parsing error", + [ ERROR_INDEX(LTTNG_ERR_SDT_PROBE_SEMAPHORE) ] = "SDT probe guarded by a semaphore", + [ ERROR_INDEX(LTTNG_ERR_ROTATION_FAIL_CONSUMER) ] = "Rotation failure on consumer", + [ ERROR_INDEX(LTTNG_ERR_ROTATE_RENAME_FAIL_CONSUMER) ] = "Rotation rename failure on consumer", + [ ERROR_INDEX(LTTNG_ERR_ROTATION_PENDING_LOCAL_FAIL_CONSUMER) ] = "Rotation pending check (local) failure on consumer", + [ ERROR_INDEX(LTTNG_ERR_ROTATION_PENDING_RELAY_FAIL_CONSUMER) ] = "Rotation pending check (relay) failure on consumer", + [ ERROR_INDEX(LTTNG_ERR_MKDIR_FAIL_CONSUMER) ] = "Directory creation failure on consumer", + [ ERROR_INDEX(LTTNG_ERR_CHAN_NOT_FOUND) ] = "Channel not found", + [ ERROR_INDEX(LTTNG_ERR_SNAPSHOT_UNSUPPORTED) ] = "Session configuration does not allow the use of snapshots", + [ ERROR_INDEX(LTTNG_ERR_SESSION_NOT_EXIST) ] = "Tracing session does not exist", + [ ERROR_INDEX(LTTNG_ERR_CREATE_TRACE_CHUNK_FAIL_CONSUMER) ] = "Trace chunk creation failed on consumer", + [ ERROR_INDEX(LTTNG_ERR_CLOSE_TRACE_CHUNK_FAIL_CONSUMER) ] = "Trace chunk close failed on consumer", + [ ERROR_INDEX(LTTNG_ERR_TRACE_CHUNK_EXISTS_FAIL_CONSUMER) ] = "Failed to query consumer for trace chunk existence", + [ ERROR_INDEX(LTTNG_ERR_INVALID_PROTOCOL) ] = "Protocol error occurred", + [ ERROR_INDEX(LTTNG_ERR_FILE_CREATION_ERROR) ] = "Failed to create file", + [ ERROR_INDEX(LTTNG_ERR_TIMER_STOP_ERROR) ] = "Failed to stop a timer", + [ ERROR_INDEX(LTTNG_ERR_ROTATION_NOT_AVAILABLE_KERNEL) ] = "Rotation feature not supported by the kernel tracer.", + [ ERROR_INDEX(LTTNG_ERR_CLEAR_RELAY_DISALLOWED) ] = "Relayd daemon peer does not allow sessions to be cleared", + [ ERROR_INDEX(LTTNG_ERR_CLEAR_NOT_AVAILABLE_RELAY) ] = "Clearing a session is not supported by the relay daemon", + [ ERROR_INDEX(LTTNG_ERR_CLEAR_FAIL_CONSUMER) ] = "Consumer failed to clear the session", + [ ERROR_INDEX(LTTNG_ERR_ROTATION_AFTER_STOP_CLEAR) ] = "Session was already cleared since it became inactive", + [ ERROR_INDEX(LTTNG_ERR_USER_NOT_FOUND) ] = "User not found", + [ ERROR_INDEX(LTTNG_ERR_GROUP_NOT_FOUND) ] = "Group not found", + [ ERROR_INDEX(LTTNG_ERR_UNSUPPORTED_DOMAIN) ] = "Unsupported domain used", + [ ERROR_INDEX(LTTNG_ERR_PROCESS_ATTR_TRACKER_INVALID_TRACKING_POLICY) ] = "Operation does not apply to the process attribute tracker's tracking policy", /* Last element */ [ ERROR_INDEX(LTTNG_ERR_NR) ] = "Unknown error code"