| 1 | /*
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| 2 | * Copyright (c) 2012 Vojtech Horky
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * - Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * - Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * - The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 |
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| 29 | /** @addtogroup libc
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| 30 | * @{
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| 31 | */
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| 32 |
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| 33 | #include <assert.h>
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| 34 | #include <unistd.h>
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| 35 | #include <errno.h>
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| 36 | #include <io/logctl.h>
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| 37 | #include <ipc/logger.h>
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| 38 | #include <sysinfo.h>
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| 39 | #include <ns.h>
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| 40 |
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| 41 | #define SYSINFO_DEFAULT_LOG_LEVEL "logger.level"
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| 42 |
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| 43 | /** IPC session with the logger service. */
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| 44 | static async_sess_t *logger_session = NULL;
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| 45 |
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| 46 | static int connect_to_logger()
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| 47 | {
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| 48 | if (logger_session != NULL)
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| 49 | return EOK;
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| 50 |
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| 51 | logger_session = service_connect_blocking(EXCHANGE_SERIALIZE,
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| 52 | SERVICE_LOGGER, LOGGER_INTERFACE_CONTROL, 0);
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| 53 | if (logger_session == NULL)
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| 54 | return ENOMEM;
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| 55 |
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| 56 | return EOK;
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| 57 | }
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| 58 |
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| 59 |
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| 60 | int logctl_set_default_level(log_level_t new_level)
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| 61 | {
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| 62 | int rc = connect_to_logger();
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| 63 | if (rc != EOK)
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| 64 | return rc;
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| 65 |
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| 66 | async_exch_t *exchange = async_exchange_begin(logger_session);
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| 67 | if (exchange == NULL)
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| 68 | return ENOMEM;
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| 69 |
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| 70 | rc = (int) async_req_1_0(exchange,
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| 71 | LOGGER_CTL_SET_DEFAULT_LEVEL, new_level);
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| 72 |
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| 73 | async_exchange_end(exchange);
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| 74 |
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| 75 | return rc;
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| 76 | }
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| 77 |
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| 78 | int logctl_get_boot_level(log_level_t *level)
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| 79 | {
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| 80 | sysarg_t boot_level_arg;
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| 81 | int rc = sysinfo_get_value(SYSINFO_DEFAULT_LOG_LEVEL, &boot_level_arg);
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| 82 | if (rc != EOK)
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| 83 | return rc;
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| 84 |
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| 85 | log_level_t boot_level = (log_level_t) boot_level_arg;
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| 86 | if (boot_level >= LVL_LIMIT)
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| 87 | return EINVAL;
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| 88 |
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| 89 | if (level != NULL)
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| 90 | *level = (log_level_t) boot_level;
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| 91 |
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| 92 | return EOK;
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| 93 | }
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| 94 |
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| 95 | /** @}
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| 96 | */
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