The log target can be used via log alarms and show alarms. Why? This feature was proposed/requested at http://openbsc.osmocom.org/trac/wiki/Tasks/ErrorLogTarget All messages use the same amount of space, prioritizing simplicity. --- .gitignore | 2 + include/osmocom/core/logging.h | 5 + include/osmocom/core/loggingrb.h | 40 +++++++ include/osmocom/core/ringbuffer.h | 58 +++++++++ src/Makefile.am | 4 +- src/loggingrb.c | 98 +++++++++++++++ src/ringbuffer.c | 173 +++++++++++++++++++++++++++ src/vty/logging_vty.c | 85 ++++++++++++- tests/Makefile.am | 13 +- tests/loggingrb/logging_test.err | 3 + tests/loggingrb/loggingrb_test.c | 83 +++++++++++++ tests/ringbuffer/ringbuffer_test.c | 225 +++++++++++++++++++++++++++++++++++ tests/ringbuffer/ringbuffer_test.ok | 1 + tests/testsuite.at | 13 ++ 14 files changed, 795 insertions(+), 8 deletions(-) create mode 100644 include/osmocom/core/loggingrb.h create mode 100644 include/osmocom/core/ringbuffer.h create mode 100644 src/loggingrb.c create mode 100644 src/ringbuffer.c create mode 100644 tests/loggingrb/logging_test.err create mode 100644 tests/loggingrb/logging_test.ok create mode 100644 tests/loggingrb/loggingrb_test.c create mode 100644 tests/ringbuffer/ringbuffer_test.c create mode 100644 tests/ringbuffer/ringbuffer_test.ok

diff --git a/.gitignore b/.gitignore index 24ca677..aedd9fd 100644 --- a/.gitignore +++ b/.gitignore @@ -69,6 +69,8 @@ tests/gb/bssgp_fc_test tests/gsm0408/gsm0408_test tests/logging/logging_test tests/fr/fr_test +tests/loggingrb/loggingrb_test +tests/ringbuf/ringbuf_test

utils/osmo-arfcn utils/osmo-auc-gen diff --git a/include/osmocom/core/logging.h b/include/osmocom/core/logging.h index 655f7a4..dc55d37 100644 --- a/include/osmocom/core/logging.h +++ b/include/osmocom/core/logging.h @@ -114,6 +114,7 @@ enum log_target_type { LOG_TGT_TYPE_SYSLOG, /*!< \brief syslog based logging */ LOG_TGT_TYPE_FILE, /*!< \brief text file logging */ LOG_TGT_TYPE_STDERR, /*!< \brief stderr logging */ + LOG_TGT_TYPE_RINGBUF, /*!< \brief ringbuffer-backed logging */ };

/*! \brief structure representing a logging target */ @@ -154,6 +155,10 @@ struct log_target { struct { void *vty; } tgt_vty; + + struct { + void *rb; + } tgt_rb; };

/*! \brief call-back function to be called when the logging framework diff --git a/include/osmocom/core/loggingrb.h b/include/osmocom/core/loggingrb.h new file mode 100644 index 0000000..a6f377b --- /dev/null +++ b/include/osmocom/core/loggingrb.h @@ -0,0 +1,40 @@ +#ifndef _LOGGINGRB_H +#define _LOGGINGRB_H + +/* (C) 2012-2013 by Katerina Barone-Adesi kat.obsc@gmail.com + * All Rights Reserved + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * 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. + * + */ + + +/*! \defgroup loggingrb Osmocom ringbuffer-backed logging + * @{ + */ + +/*! \file loggingrb.h + */ + +struct log_info; + +size_t log_target_rb_used_size(struct log_target const *target); +size_t log_target_rb_avail_size(struct log_target const *target); +const char *log_target_rb_get(struct log_target const *target, size_t logindex); +struct log_target *log_target_create_rb(size_t size); + +/*! @} */ + +#endif /* _LOGGINGRB_H */ diff --git a/include/osmocom/core/ringbuffer.h b/include/osmocom/core/ringbuffer.h new file mode 100644 index 0000000..7e16af7 --- /dev/null +++ b/include/osmocom/core/ringbuffer.h @@ -0,0 +1,58 @@ +#ifndef _RINGBUFFER_H +#define _RINGBUFFER_H + +/* (C) 2012-2013 by Katerina Barone-Adesi kat.obsc@gmail.com + * All Rights Reserved + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * 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. + * + */ + +/*! \defgroup ringbuffer Osmocom ringbuffers + * @{ + */ + +/*! \file ringbuffer.h + * \brief Osmocom ringbuffer handling routines + */ + +#include <unistd.h> +#include <stdbool.h> +#include <stdint.h> + +#include <osmocom/core/talloc.h> + +/*! \brief A structure representing a ringbuffer */ + +#define RB_MAX_MESSAGE_SIZE 240 +struct ringbuffer { + uint16_t start; /*!< \brief index of the first slot */ + uint16_t end; /*!< \brief index of the last slot */ + uint16_t size; /*!< \brief max number of messages to store */ + char **buffer; /*!< \brief storage for messages */ +}; + +struct ringbuffer *ringbuffer_create(TALLOC_CTX * ctx, size_t rb_size); +bool ringbuffer_is_empty(const struct ringbuffer *rb); +const char *ringbuffer_get_nth(const struct ringbuffer *rb, + unsigned int string_index); +bool _ringbuffer_is_bufindex_valid(const struct ringbuffer *rb, + unsigned int offset); +size_t ringbuffer_elements(const struct ringbuffer *rb); +int ringbuffer_add(struct ringbuffer *rb, const char *data); + +/*! @} */ + +#endif /* _RINGBUFFER_H */ diff --git a/src/Makefile.am b/src/Makefile.am index b425ea1..1a0f621 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -11,8 +11,8 @@ libosmocore_la_SOURCES = timer.c select.c signal.c msgb.c bits.c \ write_queue.c utils.c socket.c \ logging.c logging_syslog.c rate_ctr.c \ gsmtap_util.c crc16.c panic.c backtrace.c \ - conv.c application.c rbtree.c \ - crc8gen.c crc16gen.c crc32gen.c crc64gen.c + conv.c application.c rbtree.c ringbuffer.c \ + loggingrb.c crc8gen.c crc16gen.c crc32gen.c crc64gen.c

BUILT_SOURCES = crc8gen.c crc16gen.c crc32gen.c crc64gen.c

diff --git a/src/loggingrb.c b/src/loggingrb.c new file mode 100644 index 0000000..87cdddd --- /dev/null +++ b/src/loggingrb.c @@ -0,0 +1,98 @@ +/* Ringbuffer-backed logging support code */ + +/* (C) 2012-2013 by Katerina Barone-Adesi + * All Rights Reserved + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * 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. + * + */ + +/*! \addtogroup logging + * @{ + */ + +/*! \file loggingrb.c */ + +#include <osmocom/core/ringbuffer.h> +#include <osmocom/core/logging.h> +#include <osmocom/core/loggingrb.h> + +static void _rb_output(struct log_target *target, + unsigned int level, const char *log) +{ + ringbuffer_add(target->tgt_rb.rb, log); +} + +/*! \brief Return the number of log strings in the ringbuffer-backed target. + * \param[in] target The target to search. + * + * \return The number of log strings in the ringbuffer-backed target. + */ +size_t log_target_rb_used_size(struct log_target const *target) +{ + return ringbuffer_elements(target->tgt_rb.rb); +} + +/*! \brief Return the capacity of the ringbuffer-backed target. + * \param[in] target The target to search. + * + * Note that this is the capacity (aka max number of messages +1). + * It is not the number of unused message slots. + * \return The number of log strings in the ringbuffer-backed target. + */ +size_t log_target_rb_avail_size(struct log_target const *target) +{ + struct ringbuffer *rb = target->tgt_rb.rb; + return rb->size; +} + +/*! \brief Return the nth log entry in a target. + * \param[in] target The target to search. + * \param[in] logindex The index of the log entry/error message. + * + * \return A pointer to the nth message, or NULL if logindex is invalid. + */ +const char *log_target_rb_get(struct log_target const *target, size_t logindex) +{ + return ringbuffer_get_nth(target->tgt_rb.rb, logindex); +} + +/*! \brief Create a new logging target for ringbuffer logging. + * \param[in] size The size of the internal backing ringbuffer. + * \returns A log target in case of success, NULL in case of error. + */ +struct log_target *log_target_create_rb(size_t size) +{ + struct log_target *target; + struct ringbuffer *rb; + + target = log_target_create(); + if (!target) + return NULL; + + rb = ringbuffer_create(target, size); + if (!rb) { + log_target_destroy(target); + return NULL; + } + + target->tgt_rb.rb = rb; + target->type = LOG_TGT_TYPE_RINGBUF; + target->output = _rb_output; + + return target; +} + +/* @} */ diff --git a/src/ringbuffer.c b/src/ringbuffer.c new file mode 100644 index 0000000..3e882b1 --- /dev/null +++ b/src/ringbuffer.c @@ -0,0 +1,173 @@ +/* Ringbuffer implementation, tailored for logging. + * This is a lossy ringbuffer. It keeps up to N of the newest messages, + * overwriting the oldest as newer ones come in. + * + * (C) 2012-2013, Katerina Barone-Adesi kat.obsc@gmail.com + * All Rights Reserved + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * 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. + * + */ + +/*! \file ringb.c + * \brief Lossy ringbuffer for logging; keeps newest messages. + */ + +#include <stdio.h> +#include <string.h> +#include <strings.h> + +#include <osmocom/core/ringbuffer.h> + +/* Ringbuffer assumptions, invarients, and notes: + * - start is the index of the first used index slot in the ring buffer. + * - end is the index of the next index slot in the ring buffer. + * - start == end => buffer is empty + * - Consequence: the buffer can hold at most size - 1 messages + * (if this were not the case, full and empty buffers would be indistinguishable + * given the conventions in this implementation). + * - Whenever the ringbuffer is full, start is advanced. The second oldest + * message becomes unreachable by valid indexes (end is not a valid index) + * and the oldest message is overwritten (if there was a message there, which + * is the case unless this is the first time the ringbuffer becomes full). +*/ + +/*! \brief Create an empty, initialized ringbuffer. + * \param[in] ctx The talloc memory context which should own this. + * \param[in] rb_size The number of message slots in the ringbuffer. + * \returns A struct ringbuffer* on success, NULL in case of error. + * + * This function creates and initializes a ringbuffer. + * Note that the ringbuffer stores at most rb_size - 1 messages. + */ + +/* http://talloc.samba.org/talloc/doc/html/libtalloc__bestpractices.html + * recommends functions that return dynamically allocated values use this style + */ + +struct ringbuffer *ringbuffer_create(TALLOC_CTX * ctx, size_t rb_size) +{ + struct ringbuffer *rb = NULL; + unsigned int i; + + rb = talloc_zero(ctx, struct ringbuffer); + if (!rb) + goto alloc_error; + rb->buffer = talloc_array(rb, char *, rb_size); + if (!rb->buffer) + goto alloc_error; + for (i = 0; i < rb_size; i++) { + rb->buffer[i] = + talloc_zero_size(rb->buffer, RB_MAX_MESSAGE_SIZE); + if (!rb->buffer[i]) + goto alloc_error; + } + + /* start and end are zero already, which is correct */ + rb->size = rb_size; + return rb; + +alloc_error: /* talloc_free(NULL) is safe */ + talloc_free(rb); + return NULL; +} + +/*! \brief Check if a ringbuffer is empty. + * \param[in] rb The ringbuffer to check. + * \returns True if the buffer is empty, false otherwise. + */ +bool ringbuffer_is_empty(const struct ringbuffer *rb) +{ + return rb->end == rb->start; +} + +/*! \brief Return a pointer to the Nth string in the ringbuffer. + * \param[in] rb The ringbuffer to search. + * \param[in] string_index The index sought (N), zero-indexed. + * + * Return a pointer to the Nth string in the ringbuffer. + * Return NULL if there is no Nth string. + * Note that N is zero-indexed. + * \returns A pointer to the target string on success, NULL in case of error. + */ +const char *ringbuffer_get_nth(const struct ringbuffer *rb, + unsigned int string_index) +{ + unsigned int offset = string_index + rb->start; + + if ((offset >= rb->size) && (rb->start > rb->end)) + offset -= rb->size; + if (_ringbuffer_is_bufindex_valid(rb, offset)) + return rb->buffer[offset]; + + return NULL; +} + +bool _ringbuffer_is_bufindex_valid(const struct ringbuffer *rb, + unsigned int bufi) +{ + if (ringbuffer_is_empty(rb)) + return 0; + if ((bufi >= rb->size) || (bufi < 0)) + return 0; + if (rb->start < rb->end) + return (bufi >= rb->start) && (bufi < rb->end); + return (bufi < rb->end) || (bufi >= rb->start); +} + +/*! \brief Count the number of log messages in a ringbuffer. + * \param[in] rb The ringbuffer to count the elements of. + * + * \returns The number of log messages in the ringbuffer. + */ +size_t ringbuffer_elements(const struct ringbuffer *rb) +{ + if (rb->end < rb->start) + return rb->end + (rb->size - rb->start); + + return rb->end - rb->start; +} + +/*! \brief Add a string to the ringbuffer. + * \param[in] rb The ringbuffer to add to. + * \param[in] data The string to add. + * + * Add a message to the ring buffer. + * Older messages will be overwritten as necessary. + * \returns 0 normally, 1 as a warning (ie, if data was truncated). + */ +int ringbuffer_add(struct ringbuffer *rb, const char *data) +{ + size_t len = strlen(data); + int ret = 0; + + if (len >= RB_MAX_MESSAGE_SIZE) { + len = RB_MAX_MESSAGE_SIZE - 1; + ret = 1; + } + + memcpy(rb->buffer[rb->end], data, len); + rb->buffer[rb->end][len] = '\0'; + + rb->end += 1; + rb->end %= rb->size; + + /* The buffer is full; oldest message is forgotten - see notes above */ + if (rb->end == rb->start) { + rb->start += 1; + rb->start %= rb->size; + } + return ret; +} diff --git a/src/vty/logging_vty.c b/src/vty/logging_vty.c index d473f12..3051974 100644 --- a/src/vty/logging_vty.c +++ b/src/vty/logging_vty.c @@ -27,8 +27,8 @@ #include <osmocom/core/talloc.h> #include <osmocom/core/logging.h> #include <osmocom/core/utils.h> - -//#include <openbsc/vty.h> +#include <osmocom/core/ringbuffer.h> +#include <osmocom/core/loggingrb.h>

#include <osmocom/vty/command.h> #include <osmocom/vty/buffer.h> @@ -252,8 +252,8 @@ static void vty_print_logtarget(struct vty *vty, const struct log_info *info, #define SHOW_LOG_STR "Show current logging configuration\n"

DEFUN(show_logging_vty, - show_logging_vty_cmd, - "show logging vty", + show_logging_vty_cmd, + "show logging vty", SHOW_STR SHOW_LOG_STR "Show current logging configuration for this vty\n") { @@ -267,6 +267,33 @@ DEFUN(show_logging_vty, return CMD_SUCCESS; }

+DEFUN(show_alarms, + show_alarms_cmd, + "show alarms", + SHOW_STR SHOW_LOG_STR + "Show the contents of the logging ringbuffer\n") +{ + int i, num_alarms; + struct ringbuffer *rb; + struct log_target *tgt = log_target_find(LOG_TGT_TYPE_RINGBUF, NULL); + if (!tgt) { + vty_out(vty, "%% No alarms, run 'log alarms <2-32767>'%s", + VTY_NEWLINE); + return CMD_WARNING; + } + + rb = tgt->tgt_rb.rb; + num_alarms = ringbuffer_elements(rb); + + vty_out(vty, "%% Showing %i alarms%s", num_alarms, VTY_NEWLINE); + + for (i = 0; i < num_alarms; i++) + vty_out(vty, "%% %s%s", ringbuffer_get_nth(rb, i), + VTY_NEWLINE); + + return CMD_SUCCESS; +} + gDEFUN(cfg_description, cfg_description_cmd, "description .TEXT", "Save human-readable decription of the object\n" @@ -510,6 +537,49 @@ DEFUN(cfg_no_log_file, cfg_no_log_file_cmd, return CMD_SUCCESS; }

+DEFUN(cfg_log_alarms, cfg_log_alarms_cmd, + "log alarms <2-32767>", + LOG_STR "Logging alarms to ringbuffer\n" + "Maximum number of messages to log (+1)\n") +{ + struct log_target *tgt; + unsigned int rbsize = atoi(argv[0]); + + tgt = log_target_find(LOG_TGT_TYPE_RINGBUF, NULL); + if (tgt) + log_target_destroy(tgt); + + tgt = log_target_create_rb(rbsize); + if (!tgt) { + vty_out(vty, "%% Unable to create ringbuffer (size %u)%s", + rbsize, VTY_NEWLINE); + return CMD_WARNING; + } + log_add_target(tgt); + + vty->index = tgt; + vty->node = CFG_LOG_NODE; + + return CMD_SUCCESS; +} + +DEFUN(cfg_no_log_alarms, cfg_no_log_alarms_cmd, + "no log alarms", + NO_STR LOG_STR "Logging alarms to ringbuffer\n") +{ + struct log_target *tgt; + + tgt = log_target_find(LOG_TGT_TYPE_RINGBUF, NULL); + if (!tgt) { + vty_out(vty, "%% No ringbuffer target found%s", VTY_NEWLINE); + return CMD_WARNING; + } + + log_target_destroy(tgt); + + return CMD_SUCCESS; +} + static int config_write_log_single(struct vty *vty, struct log_target *tgt) { int i; @@ -533,6 +603,10 @@ static int config_write_log_single(struct vty *vty, struct log_target *tgt) case LOG_TGT_TYPE_FILE: vty_out(vty, "log file %s%s", tgt->tgt_file.fname, VTY_NEWLINE); break; + case LOG_TGT_TYPE_RINGBUF: + vty_out(vty, "log alarms %zu%s", + log_target_rb_avail_size(tgt), VTY_NEWLINE); + break; }

vty_out(vty, " logging filter all %u%s", @@ -590,6 +664,7 @@ void logging_vty_add_cmds(const struct log_info *cat) logging_level_cmd.doc = log_vty_command_description(cat); install_element_ve(&logging_level_cmd); install_element_ve(&show_logging_vty_cmd); + install_element_ve(&show_alarms_cmd);

install_node(&cfg_log_node, config_write_log); install_default(CFG_LOG_NODE); @@ -603,6 +678,8 @@ void logging_vty_add_cmds(const struct log_info *cat) install_element(CONFIG_NODE, &cfg_no_log_stderr_cmd); install_element(CONFIG_NODE, &cfg_log_file_cmd); install_element(CONFIG_NODE, &cfg_no_log_file_cmd); + install_element(CONFIG_NODE, &cfg_log_alarms_cmd); + install_element(CONFIG_NODE, &cfg_no_log_alarms_cmd); #ifdef HAVE_SYSLOG_H install_element(CONFIG_NODE, &cfg_log_syslog_cmd); install_element(CONFIG_NODE, &cfg_log_syslog_local_cmd); diff --git a/tests/Makefile.am b/tests/Makefile.am index be0b5f4..21ba88d 100644 --- a/tests/Makefile.am +++ b/tests/Makefile.am @@ -4,7 +4,9 @@ check_PROGRAMS = timer/timer_test sms/sms_test ussd/ussd_test \ smscb/smscb_test bits/bitrev_test a5/a5_test \ conv/conv_test auth/milenage_test lapd/lapd_test \ gsm0808/gsm0808_test gsm0408/gsm0408_test \ - gb/bssgp_fc_test logging/logging_test fr/fr_test + gb/bssgp_fc_test logging/logging_test fr/fr_test \ + loggingrb/loggingrb_test ringbuffer/ringbuffer_test + if ENABLE_MSGFILE check_PROGRAMS += msgfile/msgfile_test endif @@ -54,6 +56,12 @@ logging_logging_test_LDADD = $(top_builddir)/src/libosmocore.la fr_fr_test_SOURCES = fr/fr_test.c fr_fr_test_LDADD = $(top_builddir)/src/libosmocore.la $(top_builddir)/src/gb/libosmogb.la

+loggingrb_loggingrb_test_SOURCES = logging/logging_test.c +loggingrb_loggingrb_test_LDADD = $(top_builddir)/src/libosmocore.la $(top_builddir)/src/vty/libosmovty.la + +ringbuffer_ringbuffer_test_SOURCES = ringbuffer/ringbuffer_test.c +ringbuffer_ringbuffer_test_LDADD = $(top_builddir)/src/libosmocore.la +

# The `:;' works around a Bash 3.2 bug when the output is not writeable. $(srcdir)/package.m4: $(top_srcdir)/configure.ac @@ -82,7 +90,8 @@ EXTRA_DIST = testsuite.at $(srcdir)/package.m4 $(TESTSUITE) \ gb/bssgp_fc_tests.ok gb/bssgp_fc_tests.sh \ msgfile/msgfile_test.ok msgfile/msgconfig.cfg \ logging/logging_test.ok logging/logging_test.err \ - fr/fr_test.ok + fr/fr_test.ok loggingrb/logging_test.ok \ + loggingrb/logging_test.err ringbuffer/ringbuffer_test.ok

DISTCLEANFILES = atconfig

diff --git a/tests/loggingrb/logging_test.err b/tests/loggingrb/logging_test.err new file mode 100644 index 0000000..b59d2e8 --- /dev/null +++ b/tests/loggingrb/logging_test.err @@ -0,0 +1,3 @@ + [1;31mYou should see this + [0;m [1;32mYou should see this + [0;m \ No newline at end of file diff --git a/tests/loggingrb/logging_test.ok b/tests/loggingrb/logging_test.ok new file mode 100644 index 0000000..e69de29 diff --git a/tests/loggingrb/loggingrb_test.c b/tests/loggingrb/loggingrb_test.c new file mode 100644 index 0000000..1ab5212 --- /dev/null +++ b/tests/loggingrb/loggingrb_test.c @@ -0,0 +1,83 @@ +/* simple test for the debug interface */ +/* + * (C) 2008, 2009 by Holger Hans Peter Freyther zecke@selfish.org + * (C) 2012-2013 by Katerina Barone-Adesi kat.obsc@gmail.com + * All Rights Reserved + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * 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 Affero General Public License + * along with this program. If not, see http://www.gnu.org/licenses/. + * + */ +#include <assert.h> + +#include <osmocom/core/logging.h> +#include <osmocom/core/utils.h> +#include <osmocom/core/ringb.h> +#include <osmocom/vty/logging_rbvty.h> + +enum { + DRLL, + DCC, + DMM, +}; + +static const struct log_info_cat default_categories[] = { + [DRLL] = { + .name = "DRLL", + .description = "A-bis Radio Link Layer (RLL)", + .color = "\033[1;31m", + .enabled = 1, .loglevel = LOGL_NOTICE, + }, + [DCC] = { + .name = "DCC", + .description = "Layer3 Call Control (CC)", + .color = "\033[1;32m", + .enabled = 1, .loglevel = LOGL_NOTICE, + }, + [DMM] = { + .name = NULL, + .description = "Layer3 Mobility Management (MM)", + .color = "\033[1;33m", + .enabled = 1, .loglevel = LOGL_NOTICE, + }, +}; + +const struct log_info log_info = { + .cat = default_categories, + .num_cat = ARRAY_SIZE(default_categories), +}; + +int main(int argc, char **argv) +{ + struct log_target *ringbuf_target; + + log_init(&log_info, NULL); + ringbuf_target = log_target_create_rbvty(NULL, 0x1000); + log_add_target(ringbuf_target); + log_set_all_filter(ringbuf_target, 1); + log_set_print_filename(ringbuf_target, 0); + + log_parse_category_mask(ringbuf_target, "DRLL:DCC"); + log_parse_category_mask(ringbuf_target, "DRLL"); + DEBUGP(DCC, "You should not see this\n"); + + log_parse_category_mask(ringbuf_target, "DRLL:DCC"); + DEBUGP(DRLL, "You should see this\n"); + DEBUGP(DCC, "You should see this\n"); + DEBUGP(DMM, "You should not see this\n"); + fprintf(stderr, ringbuffer_get_nth(ringbuf_target->tgt_rbvty.rb, 0)); + fprintf(stderr, ringbuffer_get_nth(ringbuf_target->tgt_rbvty.rb, 1)); + assert(!ringbuffer_get_nth(ringbuf_target->tgt_rbvty.rb, 2)); + + return 0; +} diff --git a/tests/ringbuffer/ringbuffer_test.c b/tests/ringbuffer/ringbuffer_test.c new file mode 100644 index 0000000..b7563ca --- /dev/null +++ b/tests/ringbuffer/ringbuffer_test.c @@ -0,0 +1,225 @@ +/* (C) 2012-2013 by Katerina Barone-Adesi kat.obsc@gmail.com + * All Rights Reserved + * + * This program is iree software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * 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. + * + */ + +#include <stdio.h> +#include <assert.h> +#include <string.h> + +#include <osmocom/core/ringbuffer.h> +#include <osmocom/core/talloc.h> +#include <osmocom/core/logging.h> + +struct ringbuffer *rb0, *rb1, *rb2, *rb3, *rb4, *rb5; + +#define STR0 "hello" +#define STR1 "a" +#define STR2 "world" +#define STR3 "sky" +#define STR4 "moon" + +#define TESTSIZE 3 + +void init_rbs(void) +{ + rb0 = ringbuffer_create(NULL, TESTSIZE); + + rb1 = ringbuffer_create(NULL, TESTSIZE); + ringbuffer_add(rb1, STR0); + + rb2 = ringbuffer_create(NULL, TESTSIZE); + ringbuffer_add(rb2, STR0); + ringbuffer_add(rb2, STR1); + + rb3 = ringbuffer_create(NULL, TESTSIZE); + ringbuffer_add(rb3, STR0); + ringbuffer_add(rb3, STR1); + ringbuffer_add(rb3, STR2); + + rb4 = ringbuffer_create(NULL, TESTSIZE); + ringbuffer_add(rb4, STR0); + ringbuffer_add(rb4, STR1); + ringbuffer_add(rb4, STR2); + ringbuffer_add(rb4, STR3); + + rb5 = ringbuffer_create(NULL, TESTSIZE); + ringbuffer_add(rb5, STR0); + ringbuffer_add(rb5, STR1); + ringbuffer_add(rb5, STR2); + ringbuffer_add(rb5, STR3); + ringbuffer_add(rb5, STR4); +} + +void free_rbs(void) +{ + talloc_free(rb0); + talloc_free(rb1); + talloc_free(rb2); + talloc_free(rb3); + talloc_free(rb4); + talloc_free(rb5); +} + +void test_offset_valid(void) +{ + assert(_ringbuffer_is_bufindex_valid(rb1, 0)); + assert(!_ringbuffer_is_bufindex_valid(rb1, 1)); + assert(!_ringbuffer_is_bufindex_valid(rb1, 2)); + + assert(!_ringbuffer_is_bufindex_valid(rb3, 0)); + assert(_ringbuffer_is_bufindex_valid(rb3, 1)); + assert(_ringbuffer_is_bufindex_valid(rb3, 2)); + + assert(_ringbuffer_is_bufindex_valid(rb4, 0)); + assert(!_ringbuffer_is_bufindex_valid(rb4, 1)); + assert(_ringbuffer_is_bufindex_valid(rb4, 2)); + + assert(_ringbuffer_is_bufindex_valid(rb5, 0)); + assert(_ringbuffer_is_bufindex_valid(rb5, 1)); + assert(!_ringbuffer_is_bufindex_valid(rb5, 2)); +} + +void test_elems(void) +{ + assert(ringbuffer_elements(rb0) == 0); + assert(ringbuffer_elements(rb1) == 1); + assert(ringbuffer_elements(rb2) == 2); + assert(ringbuffer_elements(rb3) == 2); +} + +void test_getn(void) +{ + assert(!ringbuffer_get_nth(rb0, 0)); + assert(!strcmp(STR0, ringbuffer_get_nth(rb2, 0))); + assert(!strcmp(STR1, ringbuffer_get_nth(rb2, 1))); + assert(!strcmp(STR1, ringbuffer_get_nth(rb3, 0))); + assert(!strcmp(STR2, ringbuffer_get_nth(rb3, 1))); + assert(!ringbuffer_get_nth(rb3, 2)); +} + +void test_getn_wrap(void) +{ + assert(!strcmp(STR2, ringbuffer_get_nth(rb4, 0))); + assert(!strcmp(STR3, ringbuffer_get_nth(rb4, 1))); + + assert(!strcmp(STR3, ringbuffer_get_nth(rb5, 0))); + assert(!strcmp(STR4, ringbuffer_get_nth(rb5, 1))); +} + +void test_add(void) +{ + struct ringbuffer *rb = ringbuffer_create(NULL, 4); + assert(rb->start == 0); + assert(rb->end == 0); + + ringbuffer_add(rb, "a"); + ringbuffer_add(rb, "b"); + ringbuffer_add(rb, "c"); + assert(rb->start == 0); + assert(rb->end == 3); + assert(ringbuffer_elements(rb) == 3); + + ringbuffer_add(rb, "d"); + assert(rb->start == 1); + assert(rb->end == 0); + assert(ringbuffer_elements(rb) == 3); + assert(!strcmp("b", ringbuffer_get_nth(rb, 0))); + assert(!strcmp("c", ringbuffer_get_nth(rb, 1))); + assert(!strcmp("d", ringbuffer_get_nth(rb, 2))); + + ringbuffer_add(rb, "e"); + assert(rb->start == 2); + assert(rb->end == 1); + assert(!strcmp("c", ringbuffer_get_nth(rb, 0))); + assert(!strcmp("d", ringbuffer_get_nth(rb, 1))); + assert(!strcmp("e", ringbuffer_get_nth(rb, 2))); + + ringbuffer_add(rb, "f"); + assert(rb->start == 3); + assert(rb->end == 2); + assert(!strcmp("d", ringbuffer_get_nth(rb, 0))); + assert(!strcmp("e", ringbuffer_get_nth(rb, 1))); + assert(!strcmp("f", ringbuffer_get_nth(rb, 2))); + + ringbuffer_add(rb, "g"); + assert(rb->start == 0); + assert(rb->end == 3); + assert(!strcmp("e", ringbuffer_get_nth(rb, 0))); + assert(!strcmp("f", ringbuffer_get_nth(rb, 1))); + assert(!strcmp("g", ringbuffer_get_nth(rb, 2))); + + ringbuffer_add(rb, "h"); + assert(rb->start == 1); + assert(rb->end == 0); + assert(!strcmp("f", ringbuffer_get_nth(rb, 0))); + assert(!strcmp("g", ringbuffer_get_nth(rb, 1))); + assert(!strcmp("h", ringbuffer_get_nth(rb, 2))); + + talloc_free(rb); +} + +void test_long_msg(void) +{ + struct ringbuffer *rb = ringbuffer_create(NULL, 2); + int test_size = RB_MAX_MESSAGE_SIZE + 7; + char *tests1, *tests2; + const char *rb_content; + int i; + + tests1 = malloc(test_size); + tests2 = malloc(test_size); + /* Be certain allocating memory worked before continuing */ + assert(tests1); + assert(tests2); + + for (i = 0; i < RB_MAX_MESSAGE_SIZE; i += 2) { + tests1[i] = 'a'; + tests1[i + 1] = 'b'; + } + tests1[i] = '\0'; + + ringbuffer_add(rb, tests1); + strcpy(tests2, tests1); + + /* Verify that no stale data from test1 is lingering... */ + bzero(tests1, test_size); + free(tests1); + + rb_content = ringbuffer_get_nth(rb, 0); + assert(!strncmp(tests2, rb_content, RB_MAX_MESSAGE_SIZE - 1)); + assert(!rb_content[RB_MAX_MESSAGE_SIZE - 1]); + assert(strlen(rb_content) == RB_MAX_MESSAGE_SIZE - 1); + + free(tests2); + talloc_free(rb); +} + +int main(int argc, char **argv) +{ + init_rbs(); + test_offset_valid(); + test_elems(); + test_getn(); + test_getn_wrap(); + test_add(); + test_long_msg(); + printf("All tests passed\n"); + + free_rbs(); + return 0; +} diff --git a/tests/ringbuffer/ringbuffer_test.ok b/tests/ringbuffer/ringbuffer_test.ok new file mode 100644 index 0000000..9ac5124 --- /dev/null +++ b/tests/ringbuffer/ringbuffer_test.ok @@ -0,0 +1 @@ +All tests passed diff --git a/tests/testsuite.at b/tests/testsuite.at index 5029b9e..74dd214 100644 --- a/tests/testsuite.at +++ b/tests/testsuite.at @@ -99,3 +99,16 @@ cat $abs_srcdir/fr/fr_test.err > experr AT_CHECK([$abs_top_builddir/tests/fr/fr_test], [], [expout], [experr])

AT_CLEANUP + +AT_SETUP([loggingrb]) +AT_KEYWORDS([loggingrb]) +cat $abs_srcdir/loggingrb/logging_test.ok > expout +cat $abs_srcdir/loggingrb/logging_test.err > experr +AT_CHECK([$abs_top_builddir/tests/loggingrb/loggingrb_test], [], [expout], [experr]) +AT_CLEANUP + +AT_SETUP([ringbuffer]) +AT_KEYWORDS([ringbuffer]) +cat $abs_srcdir/ringbuffer/ringbuffer_test.ok > expout +AT_CHECK([$abs_top_builddir/tests/ringbuffer/ringbuffer_test], [], [expout], [ignore]) +AT_CLEANUP -- 1.7.9.5