uart: Allow either RX or TX to be optional.

[libsigrokdecode.git] / log.c

diff --git a/log.c b/log.c
index 81e9251ba06a9d4d8a74cfe6130b4e13efc2c454..46fa9e5fc5519da2e276d1294930ca2e96bb5c04 100644 (file)
--- a/log.c
+++ b/log.c
@@ -1,5 +1,5 @@
 /*
- * This file is part of the sigrok project.
+ * This file is part of the libsigrokdecode project.
  *
  * Copyright (C) 2011-2012 Uwe Hermann <uwe@hermann-uwe.de>
  *
@@ -18,11 +18,25 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  */
 
-#include "sigrokdecode.h" /* First, so we avoid a _POSIX_C_SOURCE warning. */
-#include "sigrokdecode-internal.h"
+#include "libsigrokdecode.h" /* First, so we avoid a _POSIX_C_SOURCE warning. */
+#include "libsigrokdecode-internal.h"
 #include <stdarg.h>
 #include <stdio.h>
 
+/**
+ * @file
+ *
+ * Controlling the libsigrokdecode message logging functionality.
+ */
+
+/**
+ * @defgroup grp_logging Logging
+ *
+ * Controlling the libsigrokdecode message logging functionality.
+ *
+ * @{
+ */
+
 /* Currently selected libsigrokdecode loglevel. Default: SRD_LOG_WARN. */
 static int srd_loglevel = SRD_LOG_WARN; /* Show errors+warnings per default. */
 
@@ -40,8 +54,10 @@ static srd_log_callback_t srd_log_callback = srd_logv;
 static void *srd_log_callback_data = NULL;
 
 /* Log domain (a short string that is used as prefix for all messages). */
+/** @cond PRIVATE */
 #define LOGDOMAIN_MAXLEN 30
 #define LOGDOMAIN_DEFAULT "srd: "
+/** @endcond */
 static char srd_log_domain[LOGDOMAIN_MAXLEN + 1] = LOGDOMAIN_DEFAULT;
 
 /**
@@ -59,6 +75,8 @@ static char srd_log_domain[LOGDOMAIN_MAXLEN + 1] = LOGDOMAIN_DEFAULT;
  *                 SRD_LOG_WARN, SRD_LOG_INFO, SRD_LOG_DBG, or SRD_LOG_SPEW).
  *
  * @return SRD_OK upon success, SRD_ERR_ARG upon invalid loglevel.
+ *
+ * @since 0.1.0
  */
 SRD_API int srd_log_loglevel_set(int loglevel)
 {
@@ -78,6 +96,8 @@ SRD_API int srd_log_loglevel_set(int loglevel)
  * Get the libsigrokdecode loglevel.
  *
  * @return The currently configured libsigrokdecode loglevel.
+ *
+ * @since 0.1.0
  */
 SRD_API int srd_log_loglevel_get(void)
 {
@@ -97,6 +117,8 @@ SRD_API int srd_log_loglevel_get(void)
  *                  the caller does not need to keep it around.
  *
  * @return SRD_OK upon success, SRD_ERR_ARG upon invalid logdomain.
+ *
+ * @since 0.1.0
  */
 SRD_API int srd_log_logdomain_set(const char *logdomain)
 {
@@ -105,7 +127,6 @@ SRD_API int srd_log_logdomain_set(const char *logdomain)
                return SRD_ERR_ARG;
        }
 
-       /* TODO: Error handling. */
        snprintf((char *)&srd_log_domain, LOGDOMAIN_MAXLEN, "%s", logdomain);
 
        srd_dbg("Log domain set to '%s'.", (const char *)&srd_log_domain);
@@ -119,6 +140,8 @@ SRD_API int srd_log_logdomain_set(const char *logdomain)
  * @return A copy of the currently configured libsigrokdecode logdomain
  *         string. The caller is responsible for g_free()ing the string when
  *         it is no longer needed.
+ *
+ * @since 0.1.0
  */
 SRD_API char *srd_log_logdomain_get(void)
 {
@@ -138,6 +161,8 @@ SRD_API char *srd_log_logdomain_get(void)
  *                pass any data.
  *
  * @return SRD_OK upon success, SRD_ERR_ARG upon invalid arguments.
+ *
+ * @since 0.1.0
  */
 SRD_API int srd_log_callback_set(srd_log_callback_t cb, void *cb_data)
 {
@@ -160,6 +185,8 @@ SRD_API int srd_log_callback_set(srd_log_callback_t cb, void *cb_data)
  * Additionally, the internal 'srd_log_callback_data' pointer is set to NULL.
  *
  * @return SRD_OK upon success, a (negative) error code otherwise.
+ *
+ * @since 0.1.0
  */
 SRD_API int srd_log_callback_set_default(void)
 {
@@ -183,7 +210,7 @@ static int srd_logv(void *cb_data, int loglevel, const char *format,
 
        /* Only output messages of at least the selected loglevel(s). */
        if (loglevel > srd_loglevel)
-               return SRD_OK; /* TODO? */
+               return SRD_OK;
 
        if (srd_log_domain[0] != '\0')
                fprintf(stderr, "%s", srd_log_domain);
@@ -193,6 +220,7 @@ static int srd_logv(void *cb_data, int loglevel, const char *format,
        return ret;
 }
 
+/** @private */
 SRD_PRIV int srd_log(int loglevel, const char *format, ...)
 {
        int ret;
@@ -205,6 +233,7 @@ SRD_PRIV int srd_log(int loglevel, const char *format, ...)
        return ret;
 }
 
+/** @private */
 SRD_PRIV int srd_spew(const char *format, ...)
 {
        int ret;
@@ -218,6 +247,7 @@ SRD_PRIV int srd_spew(const char *format, ...)
        return ret;
 }
 
+/** @private */
 SRD_PRIV int srd_dbg(const char *format, ...)
 {
        int ret;
@@ -231,6 +261,7 @@ SRD_PRIV int srd_dbg(const char *format, ...)
        return ret;
 }
 
+/** @private */
 SRD_PRIV int srd_info(const char *format, ...)
 {
        int ret;
@@ -244,6 +275,7 @@ SRD_PRIV int srd_info(const char *format, ...)
        return ret;
 }
 
+/** @private */
 SRD_PRIV int srd_warn(const char *format, ...)
 {
        int ret;
@@ -257,6 +289,7 @@ SRD_PRIV int srd_warn(const char *format, ...)
        return ret;
 }
 
+/** @private */
 SRD_PRIV int srd_err(const char *format, ...)
 {
        int ret;
@@ -269,3 +302,5 @@ SRD_PRIV int srd_err(const char *format, ...)
 
        return ret;
 }
+
+/** @} */