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/*
* Copyright 1999-2006 University of Chicago
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "globus_debug.h"
#include "globus_libc.h"
#include "globus_module.h"
#include "globus_common.h"
#ifdef BUILD_DEBUG
#if !defined(strdup)
char * strdup(const char *);
#endif
static
void
globus_l_debug_parse_level_names(
char * my_names,
char ** my_levels)
{
char * name;
int i;
/* check for level names */
/* prune whitespace */
name = my_names + strspn(my_names, " \t\n");
for(i = 0; i < 32; i++)
{
if(*name)
{
my_levels[i] = name;
/* find end of name */
name += strcspn(name, " \t\n");
/* terminate previous name */
if(*name)
{
*(name++) = 0;
/* prune whitespace */
name += strspn(name, " \t\n");
}
}
else
{
my_levels[i] = GLOBUS_NULL;
}
}
}
static
unsigned
globus_l_debug_get_level(
const char * env_name,
char ** my_levels,
char * levels /* gets mangled */)
{
unsigned level;
level = (unsigned) strtoul(levels, NULL, 10);
if(level == 0)
{
char * next_name;
int i;
globus_bool_t negate = GLOBUS_FALSE;
if(*levels == '^')
{
levels++;
negate = GLOBUS_TRUE;
}
/* map all names in levels to my_levels */
do
{
next_name = strchr(levels, '|');
if(next_name)
{
*(next_name++) = 0;
}
for(i = 0;
i < 32 && my_levels[i] && strcmp(levels, my_levels[i]) != 0;
i++);
if(i < 32 && my_levels[i])
{
/* matched name */
level |= 1U << i;
}
else if(strcmp(levels, "ALL") == 0)
{
level = ~(0U);
}
else
{
fprintf(stderr,
_GCSL("Invalid level name (%s) in %s env variable... ignoring\n"),
levels,
env_name);
}
} while((levels = next_name));
if(negate)
{
level = ~level;
}
}
return level;
}
void
globus_debug_init(
const char * env_name,
const char * level_names,
globus_debug_handle_t * handle)
{
char * tmp;
if(handle->file)
{
return;
}
handle->levels = 0;
handle->timestamp_levels = 0;
handle->file = stderr;
handle->thread_ids = GLOBUS_FALSE;
handle->using_file = GLOBUS_FALSE;
tmp = globus_module_getenv(env_name);
if(tmp && *tmp)
{
char * my_names;
char * my_levels[32];
char * levels;
char * filename;
char * show_tid;
char * timestamp_levels;
levels = strdup(tmp);
if(!levels)
{
return;
}
my_names = strdup(level_names);
if(!my_names)
{
free(levels);
return;
}
globus_l_debug_parse_level_names(my_names, my_levels);
show_tid = GLOBUS_NULL;
timestamp_levels = GLOBUS_NULL;
filename = strchr(levels, ',');
if(filename)
{
*(filename++) = 0;
show_tid = strchr(filename, ',');
if(show_tid)
{
*(show_tid++) = 0;
timestamp_levels = strchr(show_tid, ',');
if(timestamp_levels)
{
*(timestamp_levels++) = 0;
}
}
}
handle->levels =
globus_l_debug_get_level(env_name, my_levels, levels);
if(handle->levels)
{
globus_bool_t append_pid = GLOBUS_FALSE;
if(show_tid && *show_tid)
{
int flags;
flags = atoi(show_tid);
if((flags & 0x1))
{
handle->thread_ids = GLOBUS_TRUE;
}
if((flags & 0x2))
{
append_pid = GLOBUS_TRUE;
}
}
if(filename && *filename)
{
char buf[1024];
if(append_pid)
{
sprintf(buf, "%s.%d", filename, (int) getpid());
filename = buf;
}
if(*filename == '#')
{
filename += 1;
#ifndef WIN32
truncate(filename, 0);
#else
{
/* lazy way to truncate by name */
FILE * h = fopen(filename, "w");
if(h)
fclose(h);
}
#endif
}
handle->file = fopen(filename, "a");
if(handle->file)
{
handle->using_file = GLOBUS_TRUE;
setvbuf(handle->file, GLOBUS_NULL, _IONBF, 0);
fprintf(
handle->file, "### %d: %s ###\n", getpid(), env_name);
}
else
{
handle->file = stderr;
fprintf(stderr,
_GCSL("%s: Could not open %s, "
"using stderr for debug messages\n"),
env_name,
filename);
}
}
if(timestamp_levels)
{
handle->timestamp_levels =
globus_l_debug_get_level(
env_name, my_levels, timestamp_levels);
}
}
free(my_names);
free(levels);
}
}
#endif
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