1 /* layout_simple - a dumb log layout */
3 /* Copyright (c) 2007, 2008, 2009, 2010. The SimGrid Team.
4 * All rights reserved. */
6 /* This program is free software; you can redistribute it and/or modify it
7 * under the terms of the license (GNU LGPL) which comes with this package. */
9 #include "xbt/sysdep.h"
10 #include "xbt/strbuff.h" /* For dynamic version when the static one fails */
11 #include "xbt/log_private.h"
12 #include "xbt/synchro.h" /* xbt_thread_name */
14 #include "gras/virtu.h"
18 extern const char *xbt_log_priority_names[8];
19 extern int xbt_log_no_loc;
21 static double simple_begin_of_time = -1;
23 static void xbt_log_layout_simple_dynamic(xbt_log_layout_t l,
26 xbt_log_appender_t app)
28 xbt_strbuff_t buff = xbt_strbuff_new();
32 /* Put every static information in a static buffer, and copy them in the dyn one */
34 p += snprintf(p, 256 - (p - loc_buff), "[");
36 if (strlen(xbt_procname()))
37 p += snprintf(p, 256 - (p - loc_buff), "%s:%s:(%d) ",
38 gras_os_myname(), xbt_procname(), (*xbt_getpid) ());
39 p += snprintf(p, 256 - (p - loc_buff), "%f] ",
40 gras_os_time() - simple_begin_of_time);
41 if (ev->priority != xbt_log_priority_info && xbt_log_no_loc == 0)
42 p += snprintf(p, 256 - (p - loc_buff), "%s:%d: ", ev->fileName,
44 p += snprintf(p, 256 - (p - loc_buff), "[%s/%s] ", ev->cat->name,
45 xbt_log_priority_names[ev->priority]);
47 xbt_strbuff_append(buff, loc_buff);
49 if (vasprintf(&p, fmt, ev->ap_copy) == -1)
50 xbt_die("vasprintf failed");
51 xbt_strbuff_append(buff, p);
54 xbt_strbuff_append(buff, "\n");
56 app->do_append(app, buff->data);
57 xbt_strbuff_free(buff);
60 /* only used after the format using: we suppose that the buffer is big enough to display our data */
62 #define check_overflow \
63 if (p-ev->buffer > XBT_LOG_BUFF_SIZE) { /* buffer overflow */ \
64 xbt_log_layout_simple_dynamic(l,ev,fmt,app); \
68 static void xbt_log_layout_simple_doit(xbt_log_layout_t l,
71 xbt_log_appender_t app)
74 const char *procname = NULL;
75 xbt_assert0(ev->priority >= 0,
76 "Negative logging priority naturally forbidden");
77 xbt_assert1(ev->priority < sizeof(xbt_log_priority_names),
78 "Priority %d is greater than the biggest allowed value",
82 p += snprintf(p, XBT_LOG_BUFF_SIZE - (p - ev->buffer), "[");
85 /* Display the proc info if available */
86 procname = xbt_procname();
87 if (strlen(procname)) {
88 p += snprintf(p, XBT_LOG_BUFF_SIZE - (p - ev->buffer), "%s:%s:(%d) ",
89 gras_os_myname(), procname, (*xbt_getpid) ());
93 /* Display the date */
94 p += snprintf(p, XBT_LOG_BUFF_SIZE - (p - ev->buffer), "%f] ",
95 gras_os_time() - simple_begin_of_time);
98 /* Display file position if not INFO */
99 if (ev->priority != xbt_log_priority_info && !xbt_log_no_loc)
100 p += snprintf(p, XBT_LOG_BUFF_SIZE - (p - ev->buffer), "%s:%d: ",
101 ev->fileName, ev->lineNum);
103 /* Display category name */
104 p += snprintf(p, XBT_LOG_BUFF_SIZE - (p - ev->buffer), "[%s/%s] ",
105 ev->cat->name, xbt_log_priority_names[ev->priority]);
107 /* Display user-provided message */
108 p += vsnprintf(p, XBT_LOG_BUFF_SIZE - (p - ev->buffer), fmt, ev->ap);
112 p += snprintf(p, XBT_LOG_BUFF_SIZE - (p - ev->buffer), "\n");
114 app->do_append(app, ev->buffer);
117 xbt_log_layout_t xbt_log_layout_simple_new(char *arg)
119 xbt_log_layout_t res = xbt_new0(s_xbt_log_layout_t, 1);
120 res->do_layout = xbt_log_layout_simple_doit;
122 if (simple_begin_of_time < 0)
123 simple_begin_of_time = gras_os_time();