onewire: preparations for protocol separation between link and network layers

[libsigrokdecode.git] / log.c

diff --git a/log.c b/log.c
index d8e98ba2b692f99f6e272a45b4546f552076194c..81e9251ba06a9d4d8a74cfe6130b4e13efc2c454 100644 (file)
--- a/log.c
+++ b/log.c
@@ -27,17 +27,17 @@
 static int srd_loglevel = SRD_LOG_WARN; /* Show errors+warnings per default. */
 
 /* Function prototype. */
-static int srd_logv(void *user_data, int loglevel, const char *format,
+static int srd_logv(void *cb_data, int loglevel, const char *format,
                    va_list args);
 
-/* Pointer to the currently selected log handler. Default: srd_logv(). */
-static srd_log_handler_t srd_log_handler = srd_logv;
+/* Pointer to the currently selected log callback. Default: srd_logv(). */
+static srd_log_callback_t srd_log_callback = srd_logv;
 
 /*
- * Pointer to private data that can be passed to the log handler.
+ * Pointer to private data that can be passed to the log callback.
  * This can be used (for example) by C++ GUIs to pass a "this" pointer.
  */
-static void *srd_log_handler_data = NULL;
+static void *srd_log_callback_data = NULL;
 
 /* Log domain (a short string that is used as prefix for all messages). */
 #define LOGDOMAIN_MAXLEN 30
@@ -126,60 +126,60 @@ SRD_API char *srd_log_logdomain_get(void)
 }
 
 /**
- * Set the libsigrokdecode log handler to the specified function.
+ * Set the libsigrokdecode log callback to the specified function.
  *
- * @param handler Function pointer to the log handler function to use.
- *                Must not be NULL.
- * @param user_data Pointer to private data to be passed on. This can be used
- *                  by the caller to pass arbitrary data to the log functions.
- *                  This pointer is only stored or passed on by libsigrokdecode,
- *                  and is never used or interpreted in any way. The pointer
- *                  is allowed to be NULL if the caller doesn't need/want to
- *                  pass any data.
+ * @param cb Function pointer to the log callback function to use.
+ *           Must not be NULL.
+ * @param cb_data Pointer to private data to be passed on. This can be used
+ *                by the caller to pass arbitrary data to the log functions.
+ *                This pointer is only stored or passed on by libsigrokdecode,
+ *                and is never used or interpreted in any way. The pointer
+ *                is allowed to be NULL if the caller doesn't need/want to
+ *                pass any data.
  *
  * @return SRD_OK upon success, SRD_ERR_ARG upon invalid arguments.
  */
-SRD_API int srd_log_handler_set(srd_log_handler_t handler, void *user_data)
+SRD_API int srd_log_callback_set(srd_log_callback_t cb, void *cb_data)
 {
-       if (!handler) {
-               srd_err("log: %s: handler was NULL", __func__);
+       if (!cb) {
+               srd_err("log: %s: cb was NULL", __func__);
                return SRD_ERR_ARG;
        }
 
-       /* Note: 'user_data' is allowed to be NULL. */
+       /* Note: 'cb_data' is allowed to be NULL. */
 
-       srd_log_handler = handler;
-       srd_log_handler_data = user_data;
+       srd_log_callback = cb;
+       srd_log_callback_data = cb_data;
 
        return SRD_OK;
 }
 
 /**
- * Set the libsigrokdecode log handler to the default built-in one.
+ * Set the libsigrokdecode log callback to the default built-in one.
  *
- * Additionally, the internal 'srd_log_handler_data' pointer is set to NULL.
+ * Additionally, the internal 'srd_log_callback_data' pointer is set to NULL.
  *
  * @return SRD_OK upon success, a (negative) error code otherwise.
  */
-SRD_API int srd_log_handler_set_default(void)
+SRD_API int srd_log_callback_set_default(void)
 {
        /*
         * Note: No log output in this function, as it should safely work
-        * even if the currently set log handler is buggy/broken.
+        * even if the currently set log callback is buggy/broken.
         */
-       srd_log_handler = srd_logv;
-       srd_log_handler_data = NULL;
+       srd_log_callback = srd_logv;
+       srd_log_callback_data = NULL;
 
        return SRD_OK;
 }
 
-static int srd_logv(void *user_data, int loglevel, const char *format,
+static int srd_logv(void *cb_data, int loglevel, const char *format,
                    va_list args)
 {
        int ret;
 
-       /* This specific log handler doesn't need the void pointer data. */
-       (void)user_data;
+       /* This specific log callback doesn't need the void pointer data. */
+       (void)cb_data;
 
        /* Only output messages of at least the selected loglevel(s). */
        if (loglevel > srd_loglevel)
@@ -199,7 +199,7 @@ SRD_PRIV int srd_log(int loglevel, const char *format, ...)
        va_list args;
 
        va_start(args, format);
-       ret = srd_log_handler(srd_log_handler_data, loglevel, format, args);
+       ret = srd_log_callback(srd_log_callback_data, loglevel, format, args);
        va_end(args);
 
        return ret;
@@ -211,7 +211,8 @@ SRD_PRIV int srd_spew(const char *format, ...)
        va_list args;
 
        va_start(args, format);
-       ret = srd_log_handler(srd_log_handler_data, SRD_LOG_SPEW, format, args);
+       ret = srd_log_callback(srd_log_callback_data, SRD_LOG_SPEW,
+                              format, args);
        va_end(args);
 
        return ret;
@@ -223,7 +224,8 @@ SRD_PRIV int srd_dbg(const char *format, ...)
        va_list args;
 
        va_start(args, format);
-       ret = srd_log_handler(srd_log_handler_data, SRD_LOG_DBG, format, args);
+       ret = srd_log_callback(srd_log_callback_data, SRD_LOG_DBG,
+                              format, args);
        va_end(args);
 
        return ret;
@@ -235,7 +237,8 @@ SRD_PRIV int srd_info(const char *format, ...)
        va_list args;
 
        va_start(args, format);
-       ret = srd_log_handler(srd_log_handler_data, SRD_LOG_INFO, format, args);
+       ret = srd_log_callback(srd_log_callback_data, SRD_LOG_INFO,
+                              format, args);
        va_end(args);
 
        return ret;
@@ -247,7 +250,8 @@ SRD_PRIV int srd_warn(const char *format, ...)
        va_list args;
 
        va_start(args, format);
-       ret = srd_log_handler(srd_log_handler_data, SRD_LOG_WARN, format, args);
+       ret = srd_log_callback(srd_log_callback_data, SRD_LOG_WARN,
+                              format, args);
        va_end(args);
 
        return ret;
@@ -259,7 +263,8 @@ SRD_PRIV int srd_err(const char *format, ...)
        va_list args;
 
        va_start(args, format);
-       ret = srd_log_handler(srd_log_handler_data, SRD_LOG_ERR, format, args);
+       ret = srd_log_callback(srd_log_callback_data, SRD_LOG_ERR,
+                              format, args);
        va_end(args);
 
        return ret;