Check in the pristine copy of ICU 4.6...

icu46/source/tools/icuinfo/testplug.c

+/*
+******************************************************************************
+*
+*   Copyright (C) 2009-2010, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+******************************************************************************
+*
+*  FILE NAME : testplug.c
+*
+*   Date         Name        Description
+*   10/29/2009   srl          New.
+******************************************************************************
+*
+*
+* This file implements a number of example ICU plugins. 
+*
+*/
+
+#include "unicode/icuplug.h"
+#include <stdio.h> /* for fprintf */
+#include <stdlib.h> /* for malloc */
+#include "udbgutil.h"
+#include "unicode/uclean.h"
+#include "cmemory.h"
+
+/**
+ * Prototypes
+ */
+#define DECLARE_PLUGIN(x) U_CAPI UPlugTokenReturn U_EXPORT2 x (UPlugData *data, UPlugReason reason, UErrorCode *status)
+
+DECLARE_PLUGIN(myPlugin);
+DECLARE_PLUGIN(myPluginLow);
+DECLARE_PLUGIN(myPluginFailQuery);
+DECLARE_PLUGIN(myPluginFailToken);
+DECLARE_PLUGIN(myPluginBad);
+DECLARE_PLUGIN(myPluginHigh);
+DECLARE_PLUGIN(debugMemoryPlugin);
+
+/**
+ * A simple, trivial plugin.
+ */
+
+U_CAPI
+UPlugTokenReturn U_EXPORT2 myPlugin (
+                  UPlugData *data,
+                  UPlugReason reason,
+                  UErrorCode *status) {
+        /* Just print this for debugging */
+    fprintf(stderr,"MyPlugin: data=%p, reason=%s, status=%s\n", (void*)data, udbg_enumName(UDBG_UPlugReason,(int32_t)reason), u_errorName(*status));
+
+    if(reason==UPLUG_REASON_QUERY) {
+        uplug_setPlugName(data, "Just a Test High-Level Plugin"); /* This call is optional in response to UPLUG_REASON_QUERY, but is a good idea. */
+        uplug_setPlugLevel(data, UPLUG_LEVEL_HIGH); /* This call is Mandatory in response to UPLUG_REASON_QUERY */
+    }
+
+    return UPLUG_TOKEN; /* This must always be returned, to indicate that the entrypoint was actually a plugin. */
+}
+
+
+U_CAPI
+UPlugTokenReturn U_EXPORT2 myPluginLow (
+                  UPlugData *data,
+                  UPlugReason reason,
+                  UErrorCode *status) {
+    fprintf(stderr,"MyPluginLow: data=%p, reason=%s, status=%s\n", (void*)data, udbg_enumName(UDBG_UPlugReason,(int32_t)reason), u_errorName(*status));
+
+    if(reason==UPLUG_REASON_QUERY) {
+        uplug_setPlugName(data, "Low Plugin");
+        uplug_setPlugLevel(data, UPLUG_LEVEL_LOW);
+    }
+
+    return UPLUG_TOKEN;
+}
+
+/**
+ * Doesn't respond to QUERY properly.
+ */
+U_CAPI
+UPlugTokenReturn U_EXPORT2 myPluginFailQuery (
+                  UPlugData *data,
+                  UPlugReason reason,
+                  UErrorCode *status) {
+    fprintf(stderr,"MyPluginFailQuery: data=%p, reason=%s, status=%s\n", (void*)data, udbg_enumName(UDBG_UPlugReason,(int32_t)reason), u_errorName(*status));
+
+        /* Should respond to UPLUG_REASON_QUERY here. */
+
+    return UPLUG_TOKEN;
+}
+
+/**
+ * Doesn't return the proper token.
+ */
+U_CAPI
+UPlugTokenReturn U_EXPORT2 myPluginFailToken (
+                  UPlugData *data,
+                  UPlugReason reason,
+                  UErrorCode *status) {
+    fprintf(stderr,"MyPluginFailToken: data=%p, reason=%s, status=%s\n", (void*)data, udbg_enumName(UDBG_UPlugReason,(int32_t)reason), u_errorName(*status));
+
+    if(reason==UPLUG_REASON_QUERY) {
+        uplug_setPlugName(data, "myPluginFailToken Plugin");
+        uplug_setPlugLevel(data, UPLUG_LEVEL_LOW);
+    }
+
+    return 0; /* Wrong. */
+}
+
+
+
+/**
+ * Says it's low, but isn't.
+ */
+U_CAPI
+UPlugTokenReturn U_EXPORT2 myPluginBad (
+                  UPlugData *data,
+                  UPlugReason reason,
+                  UErrorCode *status) {
+    fprintf(stderr,"MyPluginLow: data=%p, reason=%s, status=%s\n", (void*)data, udbg_enumName(UDBG_UPlugReason,(int32_t)reason), u_errorName(*status));
+
+    if(reason==UPLUG_REASON_QUERY) {
+        uplug_setPlugName(data, "Bad Plugin");
+        uplug_setPlugLevel(data, UPLUG_LEVEL_LOW);
+    } else if(reason == UPLUG_REASON_LOAD) {
+        void *ctx = uprv_malloc(12345);
+        
+        uplug_setContext(data, ctx);
+        fprintf(stderr,"I'm %p and I did a bad thing and malloced %p\n", (void*)data, (void*)ctx);
+    } else if(reason == UPLUG_REASON_UNLOAD) {
+        void * ctx = uplug_getContext(data);
+        
+        uprv_free(ctx);
+    }
+    
+
+    return UPLUG_TOKEN;
+}
+
+U_CAPI 
+UPlugTokenReturn U_EXPORT2 myPluginHigh (
+                  UPlugData *data,
+                  UPlugReason reason,
+                  UErrorCode *status) {
+    fprintf(stderr,"MyPluginHigh: data=%p, reason=%s, status=%s\n", (void*)data, udbg_enumName(UDBG_UPlugReason,(int32_t)reason), u_errorName(*status));
+
+    if(reason==UPLUG_REASON_QUERY) {
+        uplug_setPlugName(data, "High Plugin");
+        uplug_setPlugLevel(data, UPLUG_LEVEL_HIGH);
+    }
+
+    return UPLUG_TOKEN;
+}
+
+
+/*  Debug Memory Plugin (see hpmufn.c) */
+static void * U_CALLCONV myMemAlloc(const void *context, size_t size) {
+  void *retPtr = (void *)malloc(size);
+  (void)context; /* unused */
+  fprintf(stderr, "MEM: malloc(%d) = %p\n", (int32_t)size, retPtr);
+  return retPtr;
+}
+
+static void U_CALLCONV myMemFree(const void *context, void *mem) {
+  (void)context; /* unused */
+
+  free(mem);
+  fprintf(stderr, "MEM: free(%p)\n", mem);
+}
+
+static void * U_CALLCONV myMemRealloc(const void *context, void *mem, size_t size) {
+    void *retPtr;
+    (void)context; /* unused */
+
+    
+    if(mem==NULL) {
+        retPtr = NULL;
+    } else {
+        retPtr = realloc(mem, size);
+    }
+    fprintf(stderr, "MEM: realloc(%p, %d) = %p\n", mem, (int32_t)size, retPtr);
+    return retPtr;
+}
+
+U_CAPI
+UPlugTokenReturn U_EXPORT2 debugMemoryPlugin (
+                  UPlugData *data,
+                  UPlugReason reason,
+                  UErrorCode *status) {
+    fprintf(stderr,"debugMemoryPlugin: data=%p, reason=%s, status=%s\n", (void*)data, udbg_enumName(UDBG_UPlugReason,(int32_t)reason), u_errorName(*status));
+    
+    if(reason==UPLUG_REASON_QUERY) {
+        uplug_setPlugLevel(data, UPLUG_LEVEL_LOW);
+        uplug_setPlugName(data, "Memory Plugin");
+    } else if(reason==UPLUG_REASON_LOAD) {
+        u_setMemoryFunctions(uplug_getContext(data), &myMemAlloc, &myMemRealloc, &myMemFree, status);
+        fprintf(stderr, "MEM: status now %s\n", u_errorName(*status));
+    } else if(reason==UPLUG_REASON_UNLOAD) {
+        fprintf(stderr, "MEM: not possible to unload this plugin (no way to reset memory functions)...\n");
+        uplug_setPlugNoUnload(data, TRUE);
+    }
+
+    return UPLUG_TOKEN;
+}
+