Sweden-Number/dlls/dbghelp/source.c

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2004-04-06 00:21:27 +02:00
/*
* File source.c - source files management
*
* Copyright (C) 2004, Eric Pouech.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include "dbghelp_private.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(dbghelp);
/******************************************************************
* source_find
*
* check whether a source file has already been stored
*/
static unsigned source_find(const struct module* module, const char* name)
{
char* ptr = module->sources;
while (*ptr)
{
if (strcmp(ptr, name) == 0) return ptr - module->sources;
ptr += strlen(ptr) + 1;
}
return (unsigned)-1;
}
/******************************************************************
* source_new
*
* checks if source exists. if not, add it
*/
unsigned source_new(struct module* module, const char* name)
{
int len;
unsigned ret;
if (!name) return (unsigned)-1;
if (module->sources && (ret = source_find(module, name)) != (unsigned)-1)
return ret;
len = strlen(name) + 1;
if (module->sources_used + len + 1 > module->sources_alloc)
{
/* Alloc by block of 256 bytes */
module->sources_alloc = (module->sources_used + len + 1 + 255) & ~255;
if (!module->sources)
module->sources = HeapAlloc(GetProcessHeap(), 0, module->sources_alloc);
else
module->sources = HeapReAlloc(GetProcessHeap(), 0, module->sources,
module->sources_alloc);
}
ret = module->sources_used;
strcpy(module->sources + module->sources_used, name);
module->sources_used += len;
module->sources[module->sources_used] = '\0';
return ret;
}
/******************************************************************
* source_get
*
* returns a stored source file name
*/
const char* source_get(const struct module* module, unsigned idx)
{
if (idx == -1) return "";
assert(module->sources);
return module->sources + idx;
}
/******************************************************************
* SymEnumSourceFiles (DBGHELP.@)
*
*/
BOOL WINAPI SymEnumSourceFiles(HANDLE hProcess, ULONG ModBase, LPSTR Mask,
PSYM_ENUMSOURCFILES_CALLBACK cbSrcFiles,
void* UserContext)
{
struct process* pcs;
struct module* module;
SOURCEFILE sf;
char* ptr;
if (!cbSrcFiles) return FALSE;
pcs = process_find_by_handle(hProcess);
if (!pcs) return FALSE;
if (ModBase)
{
module = module_find_by_addr(pcs, ModBase, DMT_UNKNOWN);
if (!(module = module_get_debug(pcs, module))) return FALSE;
}
else
{
if (Mask[0] == '!')
{
module = module_find_by_name(pcs, Mask + 1, DMT_UNKNOWN);
if (!(module = module_get_debug(pcs, module))) return FALSE;
}
else
{
FIXME("Unsupported yet (should get info from current context)\n");
return FALSE;
}
}
if (!module->sources) return FALSE;
for (ptr = module->sources; *ptr; ptr += strlen(ptr) + 1)
{
/* FIXME: not using Mask */
sf.ModBase = ModBase;
sf.FileName = ptr;
if (!cbSrcFiles(&sf, UserContext)) break;
}
return TRUE;
}