Look for mallinfo() and use it to display

[rsync/rsync.git] / main.c

diff --git a/main.c b/main.c
index a103ff3..8938837 100644 (file)
--- a/main.c
+++ b/main.c
@@ -2,7 +2,7 @@
    
    Copyright (C) 1996-2001 by Andrew Tridgell <tridge@samba.org>
    Copyright (C) Paul Mackerras 1996
-   Copyright (C) 2001 by Martin Pool <mbp@samba.org>
+   Copyright (C) 2001, 2002 by Martin Pool <mbp@samba.org>
    
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -27,6 +27,7 @@ struct stats stats;
 
 extern int verbose;
 
+static void show_malloc_stats(void);
 
 /****************************************************************************
 wait for a process to exit, calling io_flush while waiting
@@ -119,6 +120,7 @@ static void report(int f)
                rprintf(FINFO,"total size is %.0f  speedup is %.2f\n",
                       (double)stats.total_size,
                       (1.0*stats.total_size)/(stats.total_written+stats.total_read));
+               show_malloc_stats();
        }
 
        fflush(stdout);
@@ -126,6 +128,31 @@ static void report(int f)
 }
 
 
+/**
+ * If our C library can get malloc statistics, then show them to FINFO
+ **/
+static void show_malloc_stats(void)
+{
+#ifdef HAVE_MALLINFO
+       struct mallinfo mi;
+
+       mi = mallinfo();
+
+       rprintf(FINFO, RSYNC_NAME " heap statistics:\n");
+       rprintf(FINFO, "  arena:     %10d   (bytes from sbrk)\n", mi.arena);
+       rprintf(FINFO, "  ordblks:   %10d   (chunks not in use)\n", mi.ordblks);
+       rprintf(FINFO, "  smblks:    %10d\n", mi.smblks);
+       rprintf(FINFO, "  hblks:     %10d   (chunks from mmap)\n", mi.hblks);
+       rprintf(FINFO, "  hblkhd:    %10d   (bytes from mmap)\n", mi.hblkhd);
+       rprintf(FINFO, "  usmblks:   %10d\n", mi.usmblks);
+       rprintf(FINFO, "  fsmblks:   %10d\n", mi.fsmblks);
+       rprintf(FINFO, "  uordblks:  %10d   (bytes used)\n", mi.uordblks);
+       rprintf(FINFO, "  fordblks:  %10d   (bytes free)\n", mi.fordblks);
+       rprintf(FINFO, "  keepcost:  %10d   (bytes in releasable chunk)\n", mi.keepcost);
+#endif /* HAVE_MALLINFO */
+}
+
+
 /* Start the remote shell.   cmd may be NULL to use the default. */
 static pid_t do_cmd(char *cmd,char *machine,char *user,char *path,int *f_in,int *f_out)
 {
@@ -583,6 +610,22 @@ static char *find_colon(char *s)
 }
 
 
+static int copy_argv (char *argv[])
+{
+       int i;
+
+       for (i = 0; argv[i]; i++) {
+               if (!(argv[i] = strdup(argv[i]))) {
+                       rprintf (FERROR, "out of memory at %s(%d)\n",
+                                __FILE__, __LINE__);
+                       return RERR_MALLOC;
+               }
+       }
+
+       return 0;
+}
+
+
 /*
  * Start a client for either type of remote connection.  Work out
  * whether the arguments request a remote shell or rsyncd connection,
@@ -602,13 +645,18 @@ static int start_client(int argc, char *argv[])
        extern char *shell_cmd;
        extern int rsync_port;
        extern int whole_file;
-       char *argv0 = strdup(argv[0]);
        extern int read_batch;
+       int rc;
+
+       /* Don't clobber argv[] so that ps(1) can still show the right
+           command line. */
+       if ((rc = copy_argv (argv)))
+               return rc;
 
-       if (strncasecmp(URL_PREFIX, argv0, strlen(URL_PREFIX)) == 0) {
+       if (strncasecmp(URL_PREFIX, argv[0], strlen(URL_PREFIX)) == 0) {
                char *host, *path;
 
-               host = argv0 + strlen(URL_PREFIX);
+               host = argv[0] + strlen(URL_PREFIX);
                p = strchr(host,'/');
                if (p) {
                        *p = 0;
@@ -630,7 +678,7 @@ static int start_client(int argc, char *argv[])
        if (p) {
                if (p[1] == ':') {
                        *p = 0;
-                       return start_socket_client(argv0, p+2, argc-1, argv+1);
+                       return start_socket_client(argv[0], p+2, argc-1, argv+1);
                }
 
                if (argc < 1) {
@@ -640,7 +688,7 @@ static int start_client(int argc, char *argv[])
 
                am_sender = 0;
                *p = 0;
-               shell_machine = argv0;
+               shell_machine = argv[0];
                shell_path = p+1;
                argc--;
                argv++;