diff options
Diffstat (limited to 'android/utils/tempfile.c')
| -rw-r--r-- | android/utils/tempfile.c | 198 |
1 files changed, 0 insertions, 198 deletions
diff --git a/android/utils/tempfile.c b/android/utils/tempfile.c deleted file mode 100644 index 6374c12..0000000 --- a/android/utils/tempfile.c +++ /dev/null @@ -1,198 +0,0 @@ -/* Copyright (C) 2007-2008 The Android Open Source Project -** -** This software is licensed under the terms of the GNU General Public -** License version 2, as published by the Free Software Foundation, and -** may be copied, distributed, and modified under those terms. -** -** This program 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 General Public License for more details. -*/ - -#include "android/utils/tempfile.h" -#include "android/utils/bufprint.h" -#include "android/utils/debug.h" - -#include <stdlib.h> -#include <string.h> -#include <fcntl.h> - -#ifdef _WIN32 -# define WIN32_LEAN_AND_MEAN -# include <windows.h> -#else -# include <unistd.h> -#endif - -#define D(...) ((void)0) - -/** TEMP FILE SUPPORT - ** - ** simple interface to create an empty temporary file on the system. - ** - ** create the file with tempfile_create(), which returns a reference to a TempFile - ** object, or NULL if your system is so weird it doesn't have a temporary directory. - ** - ** you can then call tempfile_path() to retrieve the TempFile's real path to open - ** it. the returned path is owned by the TempFile object and should not be freed. - ** - ** all temporary files are destroyed when the program quits, unless you explicitely - ** close them before that with tempfile_close() - **/ - -struct TempFile -{ - const char* name; - TempFile* next; -}; - -static void tempfile_atexit(); -static TempFile* _all_tempfiles; - -TempFile* -tempfile_create( void ) -{ - TempFile* tempfile; - const char* tempname = NULL; - -#ifdef _WIN32 - char temp_namebuff[MAX_PATH]; - char temp_dir[MAX_PATH]; - char *p = temp_dir, *end = p + sizeof(temp_dir); - UINT retval; - - p = bufprint_temp_dir( p, end ); - if (p >= end) { - D( "TEMP directory path is too long" ); - return NULL; - } - - retval = GetTempFileName(temp_dir, "TMP", 0, temp_namebuff); - if (retval == 0) { - D( "can't create temporary file in '%s'", temp_dir ); - return NULL; - } - - tempname = temp_namebuff; -#else -#define TEMPLATE "/tmp/.android-emulator-XXXXXX" - int tempfd = -1; - char template[512]; - char *p = template, *end = p + sizeof(template); - - p = bufprint_temp_file( p, end, "emulator-XXXXXX" ); - if (p >= end) { - D( "Xcannot create temporary file in /tmp/android !!" ); - return NULL; - } - - D( "template: %s", template ); - tempfd = mkstemp( template ); - if (tempfd < 0) { - D("cannot create temporary file in /tmp/android !!"); - return NULL; - } - close(tempfd); - tempname = template; -#endif - tempfile = malloc( sizeof(*tempfile) + strlen(tempname) + 1 ); - tempfile->name = (char*)(tempfile + 1); - strcpy( (char*)tempfile->name, tempname ); - - tempfile->next = _all_tempfiles; - _all_tempfiles = tempfile; - - if ( !tempfile->next ) { - atexit( tempfile_atexit ); - } - - return tempfile; -} - -const char* -tempfile_path(TempFile* temp) -{ - return temp ? temp->name : NULL; -} - -void -tempfile_close(TempFile* tempfile) -{ -#ifdef _WIN32 - DeleteFile(tempfile->name); -#else - unlink(tempfile->name); -#endif -} - -/** TEMP FILE CLEANUP - ** - **/ - -/* we don't expect to use many temporary files */ -#define MAX_ATEXIT_FDS 16 - -typedef struct { - int count; - int fds[ MAX_ATEXIT_FDS ]; -} AtExitFds; - -static void -atexit_fds_add( AtExitFds* t, int fd ) -{ - if (t->count < MAX_ATEXIT_FDS) - t->fds[t->count++] = fd; - else { - dwarning("%s: over %d calls. Program exit may not cleanup all temporary files", - __FUNCTION__, MAX_ATEXIT_FDS); - } -} - -static void -atexit_fds_del( AtExitFds* t, int fd ) -{ - int nn; - for (nn = 0; nn < t->count; nn++) - if (t->fds[nn] == fd) { - /* move the last element to the current position */ - t->count -= 1; - t->fds[nn] = t->fds[t->count]; - break; - } -} - -static void -atexit_fds_close_all( AtExitFds* t ) -{ - int nn; - for (nn = 0; nn < t->count; nn++) - close(t->fds[nn]); -} - -static AtExitFds _atexit_fds[1]; - -void -atexit_close_fd(int fd) -{ - if (fd >= 0) - atexit_fds_add(_atexit_fds, fd); -} - -void -atexit_close_fd_remove(int fd) -{ - if (fd >= 0) - atexit_fds_del(_atexit_fds, fd); -} - -static void -tempfile_atexit( void ) -{ - TempFile* tempfile; - - atexit_fds_close_all( _atexit_fds ); - - for (tempfile = _all_tempfiles; tempfile; tempfile = tempfile->next) - tempfile_close(tempfile); -} |