1 /* layout_simple - a dumb log layout */
3 /* Copyright (c) 2007-2017. The SimGrid Team. */
5 /* This program is free software; you can redistribute it and/or modify it
6 * under the terms of the license (GNU LGPL) which comes with this package. */
8 #include "xbt/sysdep.h"
9 #include "src/xbt/log_private.h"
10 #include "simgrid/simix.h" /* SIMIX_host_self_get_name */
11 #include "surf/surf.h"
14 extern const char *xbt_log_priority_names[8];
16 static double format_begin_of_time = -1;
19 "Unknown %%%c sequence in layout format (%s).\n" \
20 "Known sequences:\n" \
21 " what: %%m: user message %%c: log category %%p: log priority\n" \
23 " source: %%F: file %%L: line %%M: function %%l: location (%%F:%%L)\n" \
24 " runtime: %%h: hostname %%t: thread %%P: process %%i: PID\n" \
25 " when: %%d: date %%r: app. age\n" \
26 " other: %%%%: %% %%n: new line %%e: plain space\n"
28 #define check_overflow(len) \
29 if ((rem_size -= (len)) > 0) { \
34 #define set_sz_from_precision() \
37 if (precision != -1) { \
39 sz = precision + 1; /* +1 for the final '\0' */ \
44 #define show_it(data, letter) \
54 if (precision == -1) { \
55 len = snprintf(p, rem_size, "%*" letter, wd, data); \
57 len = snprintf(p, rem_size, "%*.*" letter, wd, precision, data); \
60 check_overflow(len); \
63 #define show_string(data) \
65 const char *show_string_data = (data); \
66 show_it(show_string_data ? show_string_data : "(null)", "s"); \
68 #define show_int(data) show_it(data, "d")
69 #define show_double(data) show_it(data, "f")
71 static int xbt_log_layout_format_doit(xbt_log_layout_t l, xbt_log_event_t ev, const char *msg_fmt)
74 int rem_size = ev->buffer_size;
78 for (char* q = l->data ; *q != '\0' ; q++) {
84 fprintf(stderr, "Layout format (%s) ending with %%\n", (char *)l->data);
91 case 'n': /* platform-dependant line separator; LOG4J compliant */
95 case 'e': /* plain space; SimGrid extension */
99 case '.': /* precision specifier */
100 precision = strtol(q + 1, &q, 10);
101 goto handle_modifier;
111 case '9': /* length modifier */
112 length = strtol(q, &q, 10);
113 goto handle_modifier;
114 case 'c': /* category name; LOG4J compliant
115 should accept a precision postfix to show the hierarchy */
116 show_string(ev->cat->name);
118 case 'p': /* priority name; LOG4J compliant */
119 show_string(xbt_log_priority_names[ev->priority]);
121 case 'h': /* host name; SimGrid extension */
122 show_string(SIMIX_host_self_get_name());
124 case 't': /* thread name; LOG4J compliant */
125 show_string(SIMIX_process_self_get_name());
127 case 'P': /* process name; SimGrid extension */
128 show_string(xbt_procname());
130 case 'i': /* process PID name; SimGrid extension */
131 show_int(xbt_getpid());
133 case 'F': /* file name; LOG4J compliant */
134 show_string(ev->fileName);
136 case 'l': { /* location; LOG4J compliant */
138 set_sz_from_precision();
139 int len = snprintf(p, sz, "%s:%d", ev->fileName, ev->lineNum);
140 check_overflow(MIN(sz, len));
143 case 'L': /* line number; LOG4J compliant */
144 show_int(ev->lineNum);
146 case 'M': /* method (ie, function) name; LOG4J compliant */
147 show_string(ev->functionName);
149 case 'd': /* date; LOG4J compliant */
150 show_double(surf_get_clock());
152 case 'r': /* application age; LOG4J compliant */
153 show_double(surf_get_clock() - format_begin_of_time);
155 case 'm': { /* user-provided message; LOG4J compliant */
157 set_sz_from_precision();
158 int len = vsnprintf(p, sz, msg_fmt, ev->ap);
159 check_overflow(MIN(sz, len));
163 fprintf(stderr, ERRMSG, *q, (char *)l->data);
176 static void xbt_log_layout_format_free(xbt_log_layout_t lay)
181 xbt_log_layout_t xbt_log_layout_format_new(char *arg)
183 xbt_log_layout_t res = xbt_new0(s_xbt_log_layout_t, 1);
184 res->do_layout = &xbt_log_layout_format_doit;
185 res->free_ = &xbt_log_layout_format_free;
186 res->data = xbt_strdup((char *) arg);
188 if (format_begin_of_time < 0)
189 format_begin_of_time = surf_get_clock();