Log: new logging library API

Prepare to migrate away from GLib.  Currently, we're still using GLib
as a backend.

test/dump_playlist.cxx

@@ -32,6 +32,7 @@
 #include "PlaylistPlugin.hxx"
 #include "fs/Path.hxx"
 #include "util/Error.hxx"
+#include "Log.hxx"
 
 #include <glib.h>
 
@@ -174,7 +175,7 @@ int main(int argc, char **argv)
 	io_thread_start();
 
 	if (!input_stream_global_init(error)) {
-		g_warning("%s", error.GetMessage());
+		LogError(error);
 		return 2;
 	}
 
@@ -193,7 +194,7 @@ int main(int argc, char **argv)
 		is = input_stream::Open(uri, mutex, cond, error);
 		if (is == NULL) {
 			if (error.IsDefined())
-				g_warning("%s", error.GetMessage());
+				LogError(error);
 			else
 				g_printerr("input_stream::Open() failed\n");
 			return 2;

test/dump_text_file.cxx

@@ -25,6 +25,7 @@
 #include "stdbin.h"
 #include "TextInputStream.hxx"
 #include "util/Error.hxx"
+#include "Log.hxx"
 
 #ifdef ENABLE_ARCHIVE
 #include "ArchiveList.hxx"
@@ -66,7 +67,7 @@ dump_input_stream(struct input_stream *is)
 	is->WaitReady();
 
 	if (!is->Check(error)) {
-		g_warning("%s", error.GetMessage());
+		LogError(error);
 		is->Unlock();
 		return EXIT_FAILURE;
 	}
@@ -82,7 +83,7 @@ dump_input_stream(struct input_stream *is)
 	is->Lock();
 
 	if (!is->Check(error)) {
-		g_warning("%s", error.GetMessage());
+		LogError(error);
 		is->Unlock();
 		return EXIT_FAILURE;
 	}
@@ -123,7 +124,7 @@ int main(int argc, char **argv)
 
 	Error error;
 	if (!input_stream_global_init(error)) {
-		g_warning("%s", error.GetMessage());
+		LogError(error);
 		return 2;
 	}
 
@@ -138,7 +139,7 @@ int main(int argc, char **argv)
 		is->Close();
 	} else {
 		if (error.IsDefined())
-			g_warning("%s", error.GetMessage());
+			LogError(error);
 		else
 			g_printerr("input_stream::Open() failed\n");
 		ret = 2;

test/read_tags.cxx

@@ -28,6 +28,7 @@
 #include "tag/TagId3.hxx"
 #include "tag/ApeTag.hxx"
 #include "util/Error.hxx"
+#include "Log.hxx"
 
 #include <glib.h>
 
@@ -167,7 +168,7 @@ int main(int argc, char **argv)
 
 	Error error;
 	if (!input_stream_global_init(error)) {
-		g_warning("%s", error.GetMessage());
+		LogError(error);
 		return 2;
 	}
 

test/run_decoder.cxx

@@ -25,6 +25,7 @@
 #include "InputStream.hxx"
 #include "AudioFormat.hxx"
 #include "util/Error.hxx"
+#include "Log.hxx"
 #include "stdbin.h"
 
 #include <glib.h>
@@ -167,7 +168,7 @@ int main(int argc, char **argv)
 
 	Error error;
 	if (!input_stream_global_init(error)) {
-		g_warning("%s", error.GetMessage());
+		LogError(error);
 		return 2;
 	}
 
@@ -192,7 +193,7 @@ int main(int argc, char **argv)
 			input_stream::Open(decoder.uri, mutex, cond, error);
 		if (is == NULL) {
 			if (error.IsDefined())
-				g_warning("%s", error.GetMessage());
+				LogError(error);
 			else
 				g_printerr("input_stream::Open() failed\n");
 

test/run_inotify.cxx

@@ -21,6 +21,7 @@
 #include "InotifySource.hxx"
 #include "event/Loop.hxx"
 #include "util/Error.hxx"
+#include "Log.hxx"
 
 #include <glib.h>
 
@@ -68,14 +69,14 @@ int main(int argc, char **argv)
 						      my_inotify_callback,
 						      nullptr, error);
 	if (source == NULL) {
-		g_warning("%s", error.GetMessage());
+		LogError(error);
 		return 2;
 	}
 
 	int descriptor = source->Add(path, IN_MASK, error);
 	if (descriptor < 0) {
 		delete source;
-		g_warning("%s", error.GetMessage());
+		LogError(error);
 		return 2;
 	}
 

test/run_input.cxx

@@ -26,6 +26,7 @@
 #include "InputInit.hxx"
 #include "IOThread.hxx"
 #include "util/Error.hxx"
+#include "Log.hxx"
 
 #ifdef ENABLE_ARCHIVE
 #include "ArchiveList.hxx"
@@ -61,7 +62,7 @@ dump_input_stream(struct input_stream *is)
 	is->WaitReady();
 
 	if (!is->Check(error)) {
-		g_warning("%s", error.GetMessage());
+		LogError(error);
 		is->Unlock();
 		return EXIT_FAILURE;
 	}
@@ -84,7 +85,7 @@ dump_input_stream(struct input_stream *is)
 		num_read = is->Read(buffer, sizeof(buffer), error);
 		if (num_read == 0) {
 			if (error.IsDefined())
-				g_warning("%s", error.GetMessage());
+				LogError(error);
 
 			break;
 		}
@@ -95,7 +96,7 @@ dump_input_stream(struct input_stream *is)
 	}
 
 	if (!is->Check(error)) {
-		g_warning("%s", error.GetMessage());
+		LogError(error);
 		is->Unlock();
 		return EXIT_FAILURE;
 	}
@@ -136,7 +137,7 @@ int main(int argc, char **argv)
 #endif
 
 	if (!input_stream_global_init(error)) {
-		g_warning("%s", error.GetMessage());
+		LogError(error);
 		return 2;
 	}
 
@@ -151,7 +152,7 @@ int main(int argc, char **argv)
 		is->Close();
 	} else {
 		if (error.IsDefined())
-			g_warning("%s", error.GetMessage());
+			LogError(error);
 		else
 			g_printerr("input_stream::Open() failed\n");
 		ret = 2;

test/run_resolver.cxx

@@ -20,6 +20,7 @@
 #include "config.h"
 #include "system/Resolver.hxx"
 #include "util/Error.hxx"
+#include "Log.hxx"
 
 #include <glib.h>
 
@@ -45,7 +46,7 @@ int main(int argc, char **argv)
 		resolve_host_port(argv[1], 80, AI_PASSIVE, SOCK_STREAM,
 				  error);
 	if (ai == NULL) {
-		g_warning("%s", error.GetMessage());
+		LogError(error);
 		return EXIT_FAILURE;
 	}
 
@@ -54,7 +55,7 @@ int main(int argc, char **argv)
 					     error);
 		if (p == NULL) {
 			freeaddrinfo(ai);
-			g_warning("%s", error.GetMessage());
+			LogError(error);
 			return EXIT_FAILURE;
 		}