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logging: Add configurable logging thread delay

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This patch adds confiugurable delay when starting log processing
thread.

Signed-off-by: Emil Obalski <emil.obalski@nordicsemi.no>
This commit is contained in:
Emil Obalski 2021-08-13 15:56:51 +02:00 • committed by Christopher Friedt
commit 6f4f1dc230
3 changed files with 14 additions and 1 deletions
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3
doc/reference/logging/index.rst
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@ -156,6 +156,9 @@ threshold is used by the internal thread.
:kconfig:`CONFIG_LOG_PROCESS_THREAD`: When enabled, logging thread is created
which handles log processing.
:kconfig:`CONFIG_LOG_PROCESS_THREAD_STARTUP_DELAY_MS`: Delay in milliseconds
after which logging thread is started.
:kconfig:`CONFIG_LOG_BUFFER_SIZE`: Number of bytes dedicated for the message pool.
Single message capable of storing standard log with up to 3 arguments or hexdump
message with 12 bytes of data take 32 bytes. In v2 it indicates buffer size

7
subsys/logging/Kconfig.processing
View file

@ -67,6 +67,13 @@ config LOG_PROCESS_THREAD
if LOG_PROCESS_THREAD
config LOG_PROCESS_THREAD_STARTUP_DELAY_MS
int "Set log processing thread startup delay"
default 0
help
Log processing thread starts after requested delay given in
milliseconds. When started, thread process any buffered messages.
config LOG_PROCESS_THREAD_SLEEP_MS
int "Set internal log processing thread sleep period"
default 1000

5
subsys/logging/log_core.c
View file

@ -1271,7 +1271,10 @@ static int enable_logger(const struct device *arg)
k_thread_create(&logging_thread, logging_stack,
K_KERNEL_STACK_SIZEOF(logging_stack),
log_process_thread_func, NULL, NULL, NULL,
K_LOWEST_APPLICATION_THREAD_PRIO, 0, K_NO_WAIT);
K_LOWEST_APPLICATION_THREAD_PRIO, 0,
COND_CODE_1(CONFIG_LOG_PROCESS_THREAD,
K_MSEC(CONFIG_LOG_PROCESS_THREAD_STARTUP_DELAY_MS),
K_NO_WAIT));
k_thread_name_set(&logging_thread, "logging");
} else {
log_init();