Fix pbx_wilcalu from occupying 100% CPU now that it's nonblocking, and add malloc debug

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@927 65c4cc65-6c06-0410-ace0-fbb531ad65f3

Makefile

@@ -24,12 +24,13 @@ PROC=i686
 ifeq (${OSARCH},Linux)
 PROC=$(shell uname -m)
 endif
+PWD=$(shell pwd)
 
 ######### More GSM codec optimization
 ######### Uncomment to enable MMXTM optimizations for x86 architecture CPU's
 ######### which support MMX instructions.  This should be newer pentiums,
 ######### ppro's, etc, as well as the AMD K6 and K7.  
-K6OPT  = #-DK6OPT
+K6OPT  = -DK6OPT
 
 #Tell gcc to optimize the asterisk's code
 OPTIMIZE=-O6
@@ -43,6 +44,13 @@ DEBUG_THREADS = #-DDO_CRASH -DDEBUG_THREADS
 # Uncomment next one to enable ast_frame tracing (for debugging)
 TRACE_FRAMES = #-DTRACE_FRAMES
 
+# Uncomment next one to enable malloc debugging
+# You can view malloc debugging with:
+#   *CLI> show memory allocations [filename]
+#   *CLI> show memory summary [filename]
+#
+MALLOC_DEBUG = #-include $(PWD)/include/asterisk/astmm.h
+
 # Where to install asterisk after compiling
 # Default -> leave empty
 INSTALL_PREFIX=
@@ -90,6 +98,7 @@ CFLAGS+=-DASTAGIDIR=\"$(AGI_DIR)\"
 
 CFLAGS+= $(DEBUG_THREADS)
 CFLAGS+= $(TRACE_FRAMES)
+CFLAGS+= $(MALLOC_DEBUG)
 CFLAGS+=# -fomit-frame-pointer 
 SUBDIRS=res channels pbx apps codecs formats agi cdr astman
 ifeq (${OSARCH},Linux)
@@ -100,7 +109,8 @@ OBJS=io.o sched.o logger.o frame.o loader.o config.o channel.o \
 	translate.o file.o say.o pbx.o cli.o md5.o term.o \
 	ulaw.o alaw.o callerid.o fskmodem.o image.o app.o \
 	cdr.o tdd.o acl.o rtp.o manager.o asterisk.o ast_expr.o \
-	dsp.o chanvars.o indications.o autoservice.o db.o privacy.o
+	dsp.o chanvars.o indications.o autoservice.o db.o privacy.o \
+	astmm.o
 CC=gcc
 INSTALL=install
 

asterisk.c

@@ -1341,6 +1341,9 @@ int main(int argc, char *argv[])
 		ast_verbose(term_color(tmp, "Asterisk Ready.\n", COLOR_BRWHITE, COLOR_BLACK, sizeof(tmp)));
 	fully_booted = 1;
 	pthread_sigmask(SIG_UNBLOCK, &sigs, NULL);
+#ifdef __AST_DEBUG_MALLOC
+	__ast_mm_init();
+#endif	
 	ast_cli_register(&astshutdownnow);
 	ast_cli_register(&astshutdowngracefully);
 	ast_cli_register(&astrestartnow);

astman/Makefile

@@ -1,4 +1,7 @@
-
+#
+# Don't use ast mm routines
+#
+CFLAGS+=-DNO_AST_MM
 TARGET=$(shell if [ -f /usr/include/newt.h ]; then echo "astman"; else echo "none" ; fi)
 all: $(TARGET)
 

astmm.c

@@ -0,0 +1,319 @@
+/*
+ * Asterisk -- A telephony toolkit for Linux.
+ *
+ * Channel Variables
+ * 
+ * Copyright (C) 2002, Mark Spencer
+ *
+ * Mark Spencer <markster@linux-support.net>
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License
+ */
+
+
+
+#ifdef __AST_DEBUG_MALLOC
+
+#include <malloc.h>
+#include <stdio.h>
+#include <string.h>
+#include <pthread.h>
+#include <asterisk/cli.h>
+
+#define SOME_PRIME 563
+
+#define FUNC_CALLOC		1
+#define FUNC_MALLOC		2
+#define FUNC_REALLOC	3
+#define FUNC_STRDUP		4
+#define FUNC_STRNDUP	5
+
+/* Undefine all our macros */
+#undef malloc
+#undef calloc
+#undef realloc
+#undef strdup
+#undef strndup
+#undef free
+
+static struct ast_region {
+	struct ast_region *next;
+	char file[40];
+	char func[40];
+	int lineno;
+	int which;
+	size_t len;
+	unsigned char data[0];
+} *regions[SOME_PRIME];
+
+#define HASH(a) \
+	(((unsigned long)(a)) % SOME_PRIME)
+	
+static pthread_mutex_t reglock = PTHREAD_MUTEX_INITIALIZER;
+
+static inline void *__ast_alloc_region(size_t size, int which, const char *file, int lineno, const char *func)
+{
+	struct ast_region *reg;
+	void *ptr=NULL;
+	int hash;
+	reg = malloc(size + sizeof(struct ast_region));
+	pthread_mutex_lock(&reglock);
+	if (reg) {
+		strncpy(reg->file, file, sizeof(reg->file) - 1);
+		reg->file[sizeof(reg->file) - 1] = '\0';
+		strncpy(reg->func, func, sizeof(reg->func) - 1);
+		reg->func[sizeof(reg->func) - 1] = '\0';
+		reg->lineno = lineno;
+		reg->len = size;
+		reg->which = which;
+		ptr = reg->data;
+		hash = HASH(ptr);
+		reg->next = regions[hash];
+		regions[hash] = reg;
+	}
+	pthread_mutex_unlock(&reglock);
+	if (!reg) {
+		fprintf(stderr, "Out of memory :(\n");
+	}
+	return ptr;
+}
+
+static inline size_t __ast_sizeof_region(void *ptr)
+{
+	int hash = HASH(ptr);
+	struct ast_region *reg;
+	size_t len = 0;
+	
+	pthread_mutex_lock(&reglock);
+	reg = regions[hash];
+	while(reg) {
+		if (reg->data == ptr) {
+			len = reg->len;
+			break;
+		}
+		reg = reg->next;
+	}
+	pthread_mutex_unlock(&reglock);
+	return len;
+}
+
+static void __ast_free_region(void *ptr, const char *file, int lineno, const char *func)
+{
+	int hash = HASH(ptr);
+	struct ast_region *reg, *prev = NULL;
+	pthread_mutex_lock(&reglock);
+	reg = regions[hash];
+	while(reg) {
+		if (reg->data == ptr) {
+			if (prev)
+				prev->next = reg->next;
+			else
+				regions[hash] = reg->next;
+
+			break;
+		}
+		prev = reg;
+		reg = reg->next;
+	}
+	pthread_mutex_unlock(&reglock);
+	if (reg) {
+		free(reg);
+	} else
+		fprintf(stderr, "WARNING: Freeing unused memory at %p, in %s of %s, line %d\n",
+			ptr, func, file, lineno);
+}
+
+void *__ast_calloc(size_t nmemb, size_t size, const char *file, int lineno, const char *func) 
+{
+	void *ptr;
+	ptr = __ast_alloc_region(size * nmemb, FUNC_CALLOC, file, lineno, func);
+	if (ptr) 
+		memset(ptr, 0, size * nmemb);
+	return ptr;
+}
+
+void *__ast_malloc(size_t size, const char *file, int lineno, const char *func) 
+{
+	return __ast_alloc_region(size, FUNC_MALLOC, file, lineno, func);
+}
+
+void __ast_free(void *ptr, const char *file, int lineno, const char *func) 
+{
+	__ast_free_region(ptr, file, lineno, func);
+}
+
+void *__ast_realloc(void *ptr, size_t size, const char *file, int lineno, const char *func) 
+{
+	void *tmp;
+	size_t len=0;
+	if (ptr) {
+		len = __ast_sizeof_region(ptr);
+		if (!len) {
+			fprintf(stderr, "WARNING: Realloc of unalloced memory at %p, in %s of %s, line %d\n",
+				ptr, func, file, lineno);
+			return NULL;
+		}
+	}
+	tmp = __ast_alloc_region(size, FUNC_REALLOC, file, lineno, func);
+	if (tmp) {
+		if (len > size)
+			len = size;
+		if (ptr) {
+			memcpy(tmp, ptr, len);
+			__ast_free_region(ptr, file, lineno, func);
+		}
+	}
+	return tmp;
+}
+
+char *__ast_strdup(const char *s, const char *file, int lineno, const char *func) 
+{
+	size_t len;
+	void *ptr;
+	if (!s)
+		return NULL;
+	len = strlen(s) + 1;
+	ptr = __ast_alloc_region(len, FUNC_STRDUP, file, lineno, func);
+	if (ptr)
+		strcpy(ptr, s);
+	return ptr;
+}
+
+char *__ast_strndup(const char *s, size_t n, const char *file, int lineno, const char *func) 
+{
+	size_t len;
+	void *ptr;
+	if (!s)
+		return NULL;
+	len = strlen(s) + 1;
+	if (len > n)
+		len = n;
+	ptr = __ast_alloc_region(len, FUNC_STRDUP, file, lineno, func);
+	if (ptr)
+		strcpy(ptr, s);
+	return ptr;
+}
+
+static int handle_show_memory(int fd, int argc, char *argv[])
+{
+	char *fn = NULL;
+	int x;
+	struct ast_region *reg;
+	unsigned int len=0;
+	int count = 0;
+	if (argc >3) 
+		fn = argv[3];
+
+	/* try to lock applications list ... */
+	pthread_mutex_lock(&reglock);
+
+	for (x=0;x<SOME_PRIME;x++) {
+		reg = regions[x];
+		while(reg) {
+			if (!fn || !strcasecmp(fn, reg->file)) {
+				ast_cli(fd, "%10d bytes allocated in %20s at line %5d of %s\n", reg->len, reg->func, reg->lineno, reg->file);
+				len += reg->len;
+				count++;
+			}
+			reg = reg->next;
+		}
+	}
+	ast_cli(fd, "%d bytes allocated %d units total\n", len, count);
+	pthread_mutex_unlock(&reglock);
+	return RESULT_SUCCESS;
+}
+
+struct file_summary {
+	char fn[80];
+	int len;
+	int count;
+	struct file_summary *next;
+};
+
+static int handle_show_memory_summary(int fd, int argc, char *argv[])
+{
+	char *fn = NULL;
+	int x;
+	struct ast_region *reg;
+	unsigned int len=0;
+	int count = 0;
+	struct file_summary *list = NULL, *cur;
+	
+	if (argc >3) 
+		fn = argv[3];
+
+	/* try to lock applications list ... */
+	pthread_mutex_lock(&reglock);
+
+	for (x=0;x<SOME_PRIME;x++) {
+		reg = regions[x];
+		while(reg) {
+			if (!fn || !strcasecmp(fn, reg->file)) {
+				cur = list;
+				while(cur) {
+					if ((!fn && !strcmp(cur->fn, reg->file)) || (fn && !strcmp(cur->fn, reg->func)))
+						break;
+					cur = cur->next;
+				}
+				if (!cur) {
+					cur = alloca(sizeof(struct file_summary));
+					memset(cur, 0, sizeof(struct file_summary));
+					strncpy(cur->fn, fn ? reg->func : reg->file, sizeof(cur->fn) - 1);
+					cur->next = list;
+					list = cur;
+				}
+				cur->len += reg->len;
+				cur->count++;
+			}
+			reg = reg->next;
+		}
+	}
+	pthread_mutex_unlock(&reglock);
+	
+	/* Dump the whole list */
+	while(list) {
+		cur = list;
+		len += list->len;
+		count += list->count;
+		if (fn)
+			ast_cli(fd, "%10d bytes in %5d allocations in function '%s' of '%s'\n", list->len, list->count, list->fn, fn);
+		else
+			ast_cli(fd, "%10d bytes in %5d allocations in file '%s'\n", list->len, list->count, list->fn);
+		list = list->next;
+#if 0
+		free(cur);
+#endif		
+	}
+	ast_cli(fd, "%d bytes allocated %d units total\n", len, count);
+	return RESULT_SUCCESS;
+}
+
+static char show_memory_help[] = 
+"Usage: show memory allocations [<file>]\n"
+"       Dumps a list of all segments of allocated memory, optionally\n"
+"limited to those from a specific file\n";
+
+static char show_memory_summary_help[] = 
+"Usage: show memory summary [<file>]\n"
+"       Summarizes heap memory allocations by file, or optionally\n"
+"by function, if a file is specified\n";
+
+static struct ast_cli_entry show_memory_allocations_cli = 
+	{ { "show", "memory", "allocations", NULL }, 
+	handle_show_memory, "Display outstanding memory allocations",
+	show_memory_help };
+
+static struct ast_cli_entry show_memory_summary_cli = 
+	{ { "show", "memory", "summary", NULL }, 
+	handle_show_memory_summary, "Summarize outstanding memory allocations",
+	show_memory_summary_help };
+
+
+void __ast_mm_init(void)
+{
+	ast_cli_register(&show_memory_allocations_cli);
+	ast_cli_register(&show_memory_summary_cli);
+}
+
+#endif

config.c

@@ -29,8 +29,10 @@ struct ast_category {
 	char name[80];
 	struct ast_variable *root;
 	struct ast_category *next;
+#ifdef PRESERVE_COMMENTS
 	struct ast_comment *precomments;
 	struct ast_comment *sameline;
+#endif	
 };
 
 struct ast_config {
@@ -38,14 +40,18 @@ struct ast_config {
 	   for now */
 	struct ast_category *root;
 	struct ast_category *prev;
+#ifdef PRESERVE_COMMENTS
 	struct ast_comment *trailingcomments;
+#endif	
 };
 
+#ifdef PRESERVE_COMMENTS
 struct ast_comment_struct
 {
 	struct ast_comment *root;
 	struct ast_comment *prev;
 };
+#endif
 
 static char *strip(char *buf)
 {
@@ -60,6 +66,7 @@ static char *strip(char *buf)
 	return start;
 }
 
+#ifdef PRESERVE_COMMENTS
 static void free_comments(struct ast_comment *com)
 {
 	struct ast_comment *l;
@@ -69,6 +76,7 @@ static void free_comments(struct ast_comment *com)
 		free(l);
 	}
 }
+#endif
 
 void ast_destroy(struct ast_config *ast)
 {
@@ -85,18 +93,24 @@ void ast_destroy(struct ast_config *ast)
 			vn = v;
 			free(v->name);
 			free(v->value);
+#ifdef PRESERVE_COMMENTS
 			free_comments(v->precomments);
 			free_comments(v->sameline);
+#endif			
 			v = v->next;
 			free(vn);
 		}
 		catn = cat;
+#ifdef PRESERVE_COMMENTS
 		free_comments(cat->precomments);
 		free_comments(cat->sameline);
+#endif		
 		cat = cat->next;
 		free(catn);
 	}
+#ifdef PRESERVE_COMMENTS
 	free_comments(ast->trailingcomments);
+#endif	
 	free(ast);
 }
 
@@ -164,6 +178,7 @@ char *ast_variable_retrieve(struct ast_config *config, char *category, char *val
 	return NULL;
 }
 
+#ifdef PRESERVE_COMMENTS
 int ast_variable_delete(struct ast_config *cfg, char *category, char *variable, char *value)
 {
 	struct ast_variable *v, *pv, *bv, *bpv;
@@ -377,6 +392,7 @@ struct ast_variable *ast_variable_append_modify(struct ast_config *config, char
 	}
 	return v;
 }
+#endif		
 
 int ast_category_exist(struct ast_config *config, char *category_name)
 {
@@ -393,6 +409,7 @@ int ast_category_exist(struct ast_config *config, char *category_name)
 	return 0;
 }
 
+#ifdef PRESERVE_COMMENTS
 static struct ast_comment *build_comment(char *cmt)
 {
 	struct ast_comment *c;
@@ -406,22 +423,36 @@ static struct ast_comment *build_comment(char *cmt)
 	}
 	return c;
 }
+#endif
 
-static struct ast_config *__ast_load(char *configfile, struct ast_config *tmp, struct ast_category **_tmpc, struct ast_variable **_last, int includelevel, struct ast_comment_struct *acs);
-static int cfg_process(struct ast_config *tmp, struct ast_category **_tmpc, struct ast_variable **_last, char *buf, int lineno, char *configfile, int includelevel, struct ast_comment_struct *acs)
+static struct ast_config *__ast_load(char *configfile, struct ast_config *tmp, struct ast_category **_tmpc, struct ast_variable **_last, int includelevel
+#ifdef PRESERVE_COMMENTS
+, struct ast_comment_struct *acs
+#endif
+);
+
+static int cfg_process(struct ast_config *tmp, struct ast_category **_tmpc, struct ast_variable **_last, char *buf, int lineno, char *configfile, int includelevel 
+#ifdef PRESERVE_COMMENTS
+,struct ast_comment_struct *acs
+#endif
+)
 {
 	char *c;
 	char *cur;
 	struct ast_variable *v;
+#ifdef PRESERVE_COMMENTS
 	struct ast_comment *com = NULL;
+#endif	
 	int object;
 	/* Strip off lines using ; as comment */
 	c = strchr(buf, ';');
 	if (c) {
 		*c = '\0';
+#ifdef PRESERVE_COMMENTS
 		c++;
 		if (*c != '!')
 			com = build_comment(c);
+#endif			
 	}
 	cur = strip(buf);
 	if (strlen(cur)) {
@@ -441,16 +472,20 @@ static int cfg_process(struct ast_config *tmp, struct ast_category **_tmpc, stru
 				memset(*_tmpc, 0, sizeof(struct ast_category));
 				strncpy((*_tmpc)->name, cur+1, sizeof((*_tmpc)->name) - 1);
 				(*_tmpc)->root =  NULL;
+#ifdef PRESERVE_COMMENTS
 				(*_tmpc)->precomments = acs->root;
 				(*_tmpc)->sameline = com;
+#endif				
 				if (!tmp->prev)
 					tmp->root = *_tmpc;
 				else
 					tmp->prev->next = *_tmpc;
 
 				tmp->prev = *_tmpc;
+#ifdef PRESERVE_COMMENTS
 				acs->root = NULL;
 				acs->prev = NULL;
+#endif				
 				*_last =  NULL;
 			} else {
 				ast_log(LOG_WARNING, 
@@ -484,7 +519,11 @@ static int cfg_process(struct ast_config *tmp, struct ast_category **_tmpc, stru
 							break;
 					}
 					if (includelevel < MAX_INCLUDE_LEVEL) {
-						__ast_load(cur, tmp, _tmpc, _last, includelevel + 1, acs);
+						__ast_load(cur, tmp, _tmpc, _last, includelevel + 1
+#ifdef PRESERVE_COMMENTS
+						,acs
+#endif
+						);
 					} else 
 						ast_log(LOG_WARNING, "Maximum Include level (%d) exceeded\n", includelevel);
 				} else
@@ -519,11 +558,13 @@ static int cfg_process(struct ast_config *tmp, struct ast_category **_tmpc, stru
 					v->lineno = lineno;
 					v->object = object;
 					/* Put and reset comments */
+#ifdef PRESERVE_COMMENTS
 					v->precomments = acs->root;
-					v->blanklines = 0;
+					v->sameline = com;
 					acs->prev = NULL;
 					acs->root = NULL;
-					v->sameline = com;
+#endif					
+					v->blanklines = 0;
 					if (*_last)
 						(*_last)->next = v;
 					else
@@ -541,6 +582,7 @@ static int cfg_process(struct ast_config *tmp, struct ast_category **_tmpc, stru
 		}
 	} else {
 		/* store any comments if there are any */
+#ifdef PRESERVE_COMMENTS
 		if (com) {
 			if (acs->prev)
 				acs->prev->next = com;
@@ -552,10 +594,12 @@ static int cfg_process(struct ast_config *tmp, struct ast_category **_tmpc, stru
 			(*_last)->blanklines++;
 
 		}
+#endif
 	}
 	return 0;
 }
 
+#ifdef PRESERVE_COMMENTS
 static void dump_comments(FILE *f, struct ast_comment *comment)
 {
 	while (comment) {
@@ -563,6 +607,7 @@ static void dump_comments(FILE *f, struct ast_comment *comment)
 		comment = comment->next;
 	}
 }
+#endif
 
 int ast_save(char *configfile, struct ast_config *cfg, char *generator)
 {
@@ -591,16 +636,22 @@ int ast_save(char *configfile, struct ast_config *cfg, char *generator)
 		fprintf(f, ";!\n");
 		cat = cfg->root;
 		while(cat) {
+#ifdef PRESERVE_COMMENTS
 			/* Dump any precomments */
 			dump_comments(f, cat->precomments);
+#endif
 			/* Dump section with any appropriate comment */
+#ifdef PRESERVE_COMMENTS
 			if (cat->sameline) 
 				fprintf(f, "[%s]  ; %s\n", cat->name, cat->sameline->cmt);
 			else
+#endif
 				fprintf(f, "[%s]\n", cat->name);
 			var = cat->root;
 			while(var) {
+#ifdef PRESERVE_COMMENTS
 				dump_comments(f, var->precomments);
+#endif				
 				if (var->sameline) 
 					fprintf(f, "%s %s %s  ; %s\n", var->name, (var->object ? "=>" : "="), var->value, var->sameline->cmt);
 				else	
@@ -621,7 +672,9 @@ int ast_save(char *configfile, struct ast_config *cfg, char *generator)
 #endif
 			cat = cat->next;
 		}
+#ifdef PRESERVE_COMMENTS
 		dump_comments(f, cfg->trailingcomments);
+#endif		
 	} else {
 		if (option_debug)
 			printf("Unable to open for writing: %s\n", fn);
@@ -633,7 +686,11 @@ int ast_save(char *configfile, struct ast_config *cfg, char *generator)
 	return 0;
 }
 
-static struct ast_config *__ast_load(char *configfile, struct ast_config *tmp, struct ast_category **_tmpc, struct ast_variable **_last, int includelevel, struct ast_comment_struct *acs)
+static struct ast_config *__ast_load(char *configfile, struct ast_config *tmp, struct ast_category **_tmpc, struct ast_variable **_last, int includelevel
+#ifdef PRESERVE_COMMENTS
+, struct ast_comment_struct *acs
+#endif
+)
 {
 	char fn[256];
 	char buf[256];
@@ -671,7 +728,11 @@ static struct ast_config *__ast_load(char *configfile, struct ast_config *tmp, s
 			fgets(buf, sizeof(buf), f);
 			lineno++;
 			if (!feof(f)) {
-				if (cfg_process(tmp, _tmpc, _last, buf, lineno, configfile, includelevel, acs)) {
+				if (cfg_process(tmp, _tmpc, _last, buf, lineno, configfile, includelevel
+#ifdef PRESERVE_COMMENTS
+				, acs
+#endif
+				)) {
 					fclose(f);
 					return NULL;
 				}
@@ -684,12 +745,14 @@ static struct ast_config *__ast_load(char *configfile, struct ast_config *tmp, s
 		else if (option_verbose > 1)
 			ast_verbose( "Not found (%s)", strerror(errno));
 	}
+#ifdef PRESERVE_COMMENTS
 	if (master) {
 		/* Keep trailing comments */
 		tmp->trailingcomments = acs->root;
 		acs->root = NULL;
 		acs->prev = NULL;
 	}
+#endif
 	return tmp;
 }
 
@@ -697,8 +760,14 @@ struct ast_config *ast_load(char *configfile)
 {
 	struct ast_category *tmpc=NULL;
 	struct ast_variable *last = NULL;
+#ifdef PRESERVE_COMMENTS
 	struct ast_comment_struct acs = { NULL, NULL };
-	return __ast_load(configfile, NULL, &tmpc, &last, 0, &acs);
+#endif	
+	return __ast_load(configfile, NULL, &tmpc, &last, 0 
+#ifdef PRESERVE_COMMENTS
+	,&acs
+#endif
+	);
 }
 
 char *ast_category_browse(struct ast_config *config, char *prev)

include/asterisk/astmm.h

@@ -0,0 +1,64 @@
+/*
+ * Asterisk -- A telephony toolkit for Linux.
+ *
+ * Asterisk debugging
+ * 
+ * Copyright (C) 2002, Mark Spencer
+ *
+ * Mark Spencer <markster@linux-support.net>
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License
+ */
+
+#ifndef NO_AST_MM
+#ifndef _ASTMM_H
+#define _ASTMM_H
+
+#define __AST_DEBUG_MALLOC
+
+/* Include these now to prevent them from being needed later */
+#include <sys/types.h>
+#include <stdlib.h>
+#include <string.h>
+
+/* Undefine any macros */
+#undef malloc
+#undef calloc
+#undef realloc
+#undef strdup
+#undef strndup
+
+void *__ast_calloc(size_t nmemb, size_t size, const char *file, int lineno, const char *func);
+void *__ast_malloc(size_t size, const char *file, int lineno, const char *func);
+void __ast_free(void *ptr, const char *file, int lineno, const char *func);
+void *__ast_realloc(void *ptr, size_t size, const char *file, int lineno, const char *func);
+char *__ast_strdup(const char *s, const char *file, int lineno, const char *func);
+char *__ast_strndup(const char *s, size_t n, const char *file, int lineno, const char *func);
+
+void __ast_mm_init(void);
+
+
+/* Provide our own definitions */
+#define calloc(a,b) \
+	__ast_calloc(a,b,__FILE__, __LINE__, __PRETTY_FUNCTION__)
+
+#define malloc(a) \
+	__ast_malloc(a,__FILE__, __LINE__, __PRETTY_FUNCTION__)
+
+#define free(a) \
+	__ast_free(a,__FILE__, __LINE__, __PRETTY_FUNCTION__)
+
+#define realloc(a,b) \
+	__ast_realloc(a,b,__FILE__, __LINE__, __PRETTY_FUNCTION__)
+
+#define strdup(a) \
+	__ast_strdup(a,__FILE__, __LINE__, __PRETTY_FUNCTION__)
+
+#define strndup(a,b) \
+	__ast_strndup(a,b,__FILE__, __LINE__, __PRETTY_FUNCTION__)
+
+#else
+#error "NEVER INCLUDE astmm.h DIRECTLY!!"
+#endif
+#endif

pbx/pbx_wilcalu.c

@@ -60,6 +60,7 @@ static void *autodial(void *ignore)
 	char * sendbufptr=sendbuf;
 	int fd=open(dialfile,O_RDONLY|O_NONBLOCK);
 	int flags = fcntl(fd, F_GETFL);
+	fd_set fds;
 	fcntl(fd, F_SETFL, flags & ~O_NONBLOCK);
 	printf("Entered Wil-Calu fd=%d\n",fd);
 	if(fd<0) {
@@ -74,7 +75,11 @@ static void *autodial(void *ignore)
 		void *pass;
 
 		memset(buf,0,257);
+		FD_ZERO(&fds);
+		FD_SET(fd, &fds);
+		ast_select(fd + 1, &fds, NULL, NULL, NULL);
 		bytes=read(fd,buf,256);
+		printf("Bytes: %d\n", bytes);
 		buf[(int)bytes]=0;
 
 		if(bytes>0){