| 1 |
/* |
| 2 |
* $Id: main_macosx.mm,v 1.15 2006/03/11 11:45:25 nigel Exp $ |
| 3 |
* |
| 4 |
* main_macosx.mm - Startup code for MacOS X |
| 5 |
* Based (in a small way) on the default main.m, |
| 6 |
and on Basilisk's main_unix.cpp |
| 7 |
* |
| 8 |
* Basilisk II (C) 1997-2005 Christian Bauer |
| 9 |
* |
| 10 |
* This program is free software; you can redistribute it and/or modify |
| 11 |
* it under the terms of the GNU General Public License as published by |
| 12 |
* the Free Software Foundation; either version 2 of the License, or |
| 13 |
* (at your option) any later version. |
| 14 |
* |
| 15 |
* This program is distributed in the hope that it will be useful, |
| 16 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 |
* GNU General Public License for more details. |
| 19 |
* |
| 20 |
* You should have received a copy of the GNU General Public License |
| 21 |
* along with this program; if not, write to the Free Software |
| 22 |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 23 |
*/ |
| 24 |
|
| 25 |
#import <AppKit/AppKit.h> |
| 26 |
#undef check |
| 27 |
|
| 28 |
#define PTHREADS // Why is this here? |
| 29 |
#include "sysdeps.h" |
| 30 |
|
| 31 |
#ifdef HAVE_PTHREADS |
| 32 |
# include <pthread.h> |
| 33 |
#endif |
| 34 |
|
| 35 |
#if REAL_ADDRESSING || DIRECT_ADDRESSING |
| 36 |
# include <sys/mman.h> |
| 37 |
#endif |
| 38 |
|
| 39 |
#include <string> |
| 40 |
using std::string; |
| 41 |
|
| 42 |
#include "cpu_emulation.h" |
| 43 |
#include "macos_util_macosx.h" |
| 44 |
#include "main.h" |
| 45 |
#include "prefs.h" |
| 46 |
#include "prefs_editor.h" |
| 47 |
#include "rom_patches.h" |
| 48 |
#include "sigsegv.h" |
| 49 |
#include "sys.h" |
| 50 |
#include "user_strings.h" |
| 51 |
#include "version.h" |
| 52 |
#include "video.h" |
| 53 |
#include "vm_alloc.h" |
| 54 |
#include "xpram.h" |
| 55 |
|
| 56 |
#if USE_JIT |
| 57 |
extern void flush_icache_range(uint8 *start, uint32 size); // from compemu_support.cpp |
| 58 |
#endif |
| 59 |
|
| 60 |
#ifdef ENABLE_MON |
| 61 |
# include "mon.h" |
| 62 |
#endif |
| 63 |
|
| 64 |
#define DEBUG 0 |
| 65 |
#include "debug.h" |
| 66 |
|
| 67 |
|
| 68 |
#include "main_macosx.h" // To bridge between main() and misc. classes |
| 69 |
|
| 70 |
|
| 71 |
// Constants |
| 72 |
const char ROM_FILE_NAME[] = "ROM"; |
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const int SCRATCH_MEM_SIZE = 0x10000; // Size of scratch memory area |
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|
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|
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// CPU and FPU type, addressing mode |
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int CPUType; |
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bool CPUIs68060; |
| 79 |
int FPUType; |
| 80 |
bool TwentyFourBitAddressing; |
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bool ThirtyThreeBitAddressing = false; |
| 82 |
|
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|
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// Global variables |
| 85 |
|
| 86 |
#ifdef HAVE_PTHREADS |
| 87 |
|
| 88 |
static pthread_mutex_t intflag_lock = PTHREAD_MUTEX_INITIALIZER; // Mutex to protect InterruptFlags |
| 89 |
#define LOCK_INTFLAGS pthread_mutex_lock(&intflag_lock) |
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#define UNLOCK_INTFLAGS pthread_mutex_unlock(&intflag_lock) |
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|
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#else |
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|
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#define LOCK_INTFLAGS |
| 95 |
#define UNLOCK_INTFLAGS |
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|
| 97 |
#endif |
| 98 |
|
| 99 |
#if USE_SCRATCHMEM_SUBTERFUGE |
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uint8 *ScratchMem = NULL; // Scratch memory for Mac ROM writes |
| 101 |
#endif |
| 102 |
|
| 103 |
#ifdef ENABLE_MON |
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static struct sigaction sigint_sa; // sigaction for SIGINT handler |
| 105 |
static void sigint_handler(...); |
| 106 |
#endif |
| 107 |
|
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#if REAL_ADDRESSING |
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static bool lm_area_mapped = false; // Flag: Low Memory area mmap()ped |
| 110 |
#endif |
| 111 |
|
| 112 |
|
| 113 |
/* |
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* Helpers to map memory that can be accessed from the Mac side |
| 115 |
*/ |
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|
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// NOTE: VM_MAP_33BIT is only used when compiling a 64-bit JIT on specific platforms |
| 118 |
void *vm_acquire_mac(size_t size) |
| 119 |
{ |
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void *m = vm_acquire(size, VM_MAP_DEFAULT | VM_MAP_33BIT); |
| 121 |
#ifdef USE_33BIT_ADDRESSING |
| 122 |
if (m == VM_MAP_FAILED) { |
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printf("WARNING: Cannot acquire memory in 33-bit address space (%s)\n", strerror(errno)); |
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ThirtyThreeBitAddressing = false; |
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m = vm_acquire(size); |
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} |
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#endif |
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return m; |
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} |
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|
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static int vm_acquire_mac_fixed(void *addr, size_t size) |
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{ |
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int ret = vm_acquire_fixed(addr, size, VM_MAP_DEFAULT | VM_MAP_33BIT); |
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#ifdef USE_33BIT_ADDRESSING |
| 135 |
if (ret < 0) { |
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printf("WARNING: Cannot acquire fixed memory in 33-bit address space (%s)\n", strerror(errno)); |
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ThirtyThreeBitAddressing = false; |
| 138 |
ret = vm_acquire_fixed(addr, size); |
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} |
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#endif |
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return ret; |
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} |
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|
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|
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/* |
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* SIGSEGV handler |
| 147 |
*/ |
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|
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static sigsegv_return_t sigsegv_handler(sigsegv_address_t fault_address, |
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sigsegv_address_t fault_instruction) |
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{ |
| 152 |
#if ENABLE_VOSF |
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// Handle screen fault |
| 154 |
extern bool Screen_fault_handler(sigsegv_address_t, sigsegv_address_t); |
| 155 |
if (Screen_fault_handler(fault_address, fault_instruction)) |
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return SIGSEGV_RETURN_SUCCESS; |
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#endif |
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|
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#ifdef HAVE_SIGSEGV_SKIP_INSTRUCTION |
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// Ignore writes to ROM |
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if (((uintptr)fault_address - (uintptr)ROMBaseHost) < ROMSize) |
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return SIGSEGV_RETURN_SKIP_INSTRUCTION; |
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|
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// Ignore all other faults, if requested |
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if (PrefsFindBool("ignoresegv")) |
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return SIGSEGV_RETURN_SKIP_INSTRUCTION; |
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#endif |
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|
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return SIGSEGV_RETURN_FAILURE; |
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} |
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|
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|
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/* |
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* Dump state when everything went wrong after a SEGV |
| 175 |
*/ |
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|
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static void sigsegv_dump_state(sigsegv_address_t fault_address, sigsegv_address_t fault_instruction) |
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{ |
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fprintf(stderr, "Caught SIGSEGV at address %p", fault_address); |
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if (fault_instruction != SIGSEGV_INVALID_PC) |
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fprintf(stderr, " [IP=%p]", fault_instruction); |
| 182 |
fprintf(stderr, "\n"); |
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uaecptr nextpc; |
| 184 |
extern void m68k_dumpstate(uaecptr *nextpc); |
| 185 |
m68k_dumpstate(&nextpc); |
| 186 |
#if USE_JIT && JIT_DEBUG |
| 187 |
extern void compiler_dumpstate(void); |
| 188 |
compiler_dumpstate(); |
| 189 |
#endif |
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VideoQuitFullScreen(); |
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#ifdef ENABLE_MON |
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char *arg[4] = {"mon", "-m", "-r", NULL}; |
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mon(3, arg); |
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#endif |
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QuitEmulator(); |
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} |
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|
| 198 |
|
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/* |
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* Main program |
| 201 |
*/ |
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|
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static void usage(const char *prg_name) |
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{ |
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printf("Usage: %s [OPTION...]\n", prg_name); |
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printf("\nUnix options:\n"); |
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printf(" --help\n display this usage message\n"); |
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printf(" --config FILE\n read/write configuration from/to FILE\n"); |
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printf(" --break ADDRESS\n set ROM breakpoint\n"); |
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printf(" --rominfo\n dump ROM information\n"); |
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LoadPrefs(); // read the prefs file so PrefsPrintUsage() will print the correct default values |
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PrefsPrintUsage(); |
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exit(0); |
| 214 |
} |
| 215 |
|
| 216 |
int main(int argc, char **argv) |
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{ |
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// Initialize variables |
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RAMBaseHost = NULL; |
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ROMBaseHost = NULL; |
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srand(time(NULL)); |
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tzset(); |
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|
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// Print some info |
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printf(GetString(STR_ABOUT_TEXT1), VERSION_MAJOR, VERSION_MINOR); |
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printf(" %s\n", GetString(STR_ABOUT_TEXT2)); |
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|
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// Parse command line arguments |
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for (int i=1; i<argc; i++) { |
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if (strcmp(argv[i], "--help") == 0) { |
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usage(argv[0]); |
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} else if (strncmp(argv[i], "-psn_", 5) == 0) {// OS X process identifier |
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i++; |
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} else if (strcmp(argv[i], "--break") == 0) { |
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i++; |
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if (i < argc) |
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ROMBreakpoint = strtol(argv[i], NULL, 0); |
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} else if (strcmp(argv[i], "--config") == 0) { |
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argv[i++] = NULL; |
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if (i < argc) { |
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extern string UserPrefsPath; // from prefs_unix.cpp |
| 242 |
UserPrefsPath = argv[i]; |
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argv[i] = NULL; |
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} |
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} else if (strcmp(argv[i], "--rominfo") == 0) { |
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PrintROMInfo = true; |
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} else if (argv[i][0] == '-') { |
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fprintf(stderr, "Unrecognized option '%s'\n", argv[i]); |
| 249 |
usage(argv[0]); |
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} |
| 251 |
} |
| 252 |
|
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// Read preferences |
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PrefsInit(argc, argv); |
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|
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// Init system routines |
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SysInit(); |
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|
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// Open display, attach to window server, |
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// load pre-instantiated classes from MainMenu.nib, start run loop |
| 261 |
int i = NSApplicationMain(argc, (const char **)argv); |
| 262 |
// We currently never get past here, because QuitEmulator() does an exit() |
| 263 |
|
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// Exit system routines |
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SysExit(); |
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|
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// Exit preferences |
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PrefsExit(); |
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|
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return i; |
| 271 |
} |
| 272 |
|
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#define QuitEmulator() { QuitEmuNoExit() ; return NO; } |
| 274 |
|
| 275 |
bool InitEmulator (void) |
| 276 |
{ |
| 277 |
char str[256]; |
| 278 |
|
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|
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// Install the handler for SIGSEGV |
| 281 |
if (!sigsegv_install_handler(sigsegv_handler)) { |
| 282 |
sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGSEGV", strerror(errno)); |
| 283 |
ErrorAlert(str); |
| 284 |
QuitEmulator(); |
| 285 |
} |
| 286 |
|
| 287 |
// Register dump state function when we got mad after a segfault |
| 288 |
sigsegv_set_dump_state(sigsegv_dump_state); |
| 289 |
|
| 290 |
// Read RAM size |
| 291 |
RAMSize = PrefsFindInt32("ramsize") & 0xfff00000; // Round down to 1MB boundary |
| 292 |
if (RAMSize < 1024*1024) { |
| 293 |
WarningAlert(GetString(STR_SMALL_RAM_WARN)); |
| 294 |
RAMSize = 1024*1024; |
| 295 |
} |
| 296 |
if (RAMSize > 1023*1024*1024) // Cap to 1023MB (APD crashes at 1GB) |
| 297 |
RAMSize = 1023*1024*1024; |
| 298 |
|
| 299 |
#if REAL_ADDRESSING || DIRECT_ADDRESSING |
| 300 |
RAMSize = RAMSize & -getpagesize(); // Round down to page boundary |
| 301 |
#endif |
| 302 |
|
| 303 |
// Initialize VM system |
| 304 |
vm_init(); |
| 305 |
|
| 306 |
#ifdef USE_33BIT_ADDRESSING |
| 307 |
// Speculatively enables 33-bit addressing |
| 308 |
ThirtyThreeBitAddressing = true; |
| 309 |
#endif |
| 310 |
|
| 311 |
#if REAL_ADDRESSING |
| 312 |
// Flag: RAM and ROM are contigously allocated from address 0 |
| 313 |
bool memory_mapped_from_zero = false; |
| 314 |
|
| 315 |
// Make sure to map RAM & ROM at address 0 only on platforms that |
| 316 |
// supports linker scripts to relocate the Basilisk II executable |
| 317 |
// above 0x70000000 |
| 318 |
#if HAVE_LINKER_SCRIPT |
| 319 |
const bool can_map_all_memory = true; |
| 320 |
#else |
| 321 |
const bool can_map_all_memory = false; |
| 322 |
#endif |
| 323 |
|
| 324 |
// Try to allocate all memory from 0x0000, if it is not known to crash |
| 325 |
if (can_map_all_memory && (vm_acquire_mac_fixed(0, RAMSize + 0x100000) == 0)) { |
| 326 |
D(bug("Could allocate RAM and ROM from 0x0000\n")); |
| 327 |
memory_mapped_from_zero = true; |
| 328 |
} |
| 329 |
|
| 330 |
#ifndef PAGEZERO_HACK |
| 331 |
// Otherwise, just create the Low Memory area (0x0000..0x2000) |
| 332 |
else if (vm_acquire_mac_fixed(0, 0x2000) == 0) { |
| 333 |
D(bug("Could allocate the Low Memory globals\n")); |
| 334 |
lm_area_mapped = true; |
| 335 |
} |
| 336 |
|
| 337 |
// Exit on failure |
| 338 |
else { |
| 339 |
sprintf(str, GetString(STR_LOW_MEM_MMAP_ERR), strerror(errno)); |
| 340 |
ErrorAlert(str); |
| 341 |
QuitEmulator(); |
| 342 |
} |
| 343 |
#endif |
| 344 |
#else |
| 345 |
*str = 0; // Eliminate unused variable warning |
| 346 |
#endif /* REAL_ADDRESSING */ |
| 347 |
|
| 348 |
// Create areas for Mac RAM and ROM |
| 349 |
#if REAL_ADDRESSING |
| 350 |
if (memory_mapped_from_zero) { |
| 351 |
RAMBaseHost = (uint8 *)0; |
| 352 |
ROMBaseHost = RAMBaseHost + RAMSize; |
| 353 |
} |
| 354 |
else |
| 355 |
#endif |
| 356 |
{ |
| 357 |
uint8 *ram_rom_area = (uint8 *)vm_acquire_mac(RAMSize + 0x100000); |
| 358 |
if (ram_rom_area == VM_MAP_FAILED) { |
| 359 |
ErrorAlert(STR_NO_MEM_ERR); |
| 360 |
QuitEmulator(); |
| 361 |
} |
| 362 |
RAMBaseHost = ram_rom_area; |
| 363 |
ROMBaseHost = RAMBaseHost + RAMSize; |
| 364 |
} |
| 365 |
|
| 366 |
#if USE_SCRATCHMEM_SUBTERFUGE |
| 367 |
// Allocate scratch memory |
| 368 |
ScratchMem = (uint8 *)vm_acquire_mac(SCRATCH_MEM_SIZE); |
| 369 |
if (ScratchMem == VM_MAP_FAILED) { |
| 370 |
ErrorAlert(STR_NO_MEM_ERR); |
| 371 |
QuitEmulator(); |
| 372 |
} |
| 373 |
ScratchMem += SCRATCH_MEM_SIZE/2; // ScratchMem points to middle of block |
| 374 |
#endif |
| 375 |
|
| 376 |
#if DIRECT_ADDRESSING |
| 377 |
// RAMBaseMac shall always be zero |
| 378 |
MEMBaseDiff = (uintptr)RAMBaseHost; |
| 379 |
RAMBaseMac = 0; |
| 380 |
ROMBaseMac = Host2MacAddr(ROMBaseHost); |
| 381 |
#endif |
| 382 |
#if REAL_ADDRESSING |
| 383 |
RAMBaseMac = Host2MacAddr(RAMBaseHost); |
| 384 |
ROMBaseMac = Host2MacAddr(ROMBaseHost); |
| 385 |
#endif |
| 386 |
D(bug("Mac RAM starts at %p (%08x)\n", RAMBaseHost, RAMBaseMac)); |
| 387 |
D(bug("Mac ROM starts at %p (%08x)\n", ROMBaseHost, ROMBaseMac)); |
| 388 |
|
| 389 |
// Get rom file path from preferences |
| 390 |
const char *rom_path = PrefsFindString("rom"); |
| 391 |
if ( ! rom_path ) |
| 392 |
WarningAlert("No rom pathname set. Trying ./ROM"); |
| 393 |
|
| 394 |
// Load Mac ROM |
| 395 |
int rom_fd = open(rom_path ? rom_path : ROM_FILE_NAME, O_RDONLY); |
| 396 |
if (rom_fd < 0) { |
| 397 |
ErrorAlert(STR_NO_ROM_FILE_ERR); |
| 398 |
QuitEmulator(); |
| 399 |
} |
| 400 |
printf(GetString(STR_READING_ROM_FILE)); |
| 401 |
ROMSize = lseek(rom_fd, 0, SEEK_END); |
| 402 |
if (ROMSize != 64*1024 && ROMSize != 128*1024 && ROMSize != 256*1024 && ROMSize != 512*1024 && ROMSize != 1024*1024) { |
| 403 |
ErrorAlert(STR_ROM_SIZE_ERR); |
| 404 |
close(rom_fd); |
| 405 |
QuitEmulator(); |
| 406 |
} |
| 407 |
lseek(rom_fd, 0, SEEK_SET); |
| 408 |
if (read(rom_fd, ROMBaseHost, ROMSize) != (ssize_t)ROMSize) { |
| 409 |
ErrorAlert(STR_ROM_FILE_READ_ERR); |
| 410 |
close(rom_fd); |
| 411 |
QuitEmulator(); |
| 412 |
} |
| 413 |
|
| 414 |
|
| 415 |
// Initialize everything |
| 416 |
if (!InitAll()) |
| 417 |
QuitEmulator(); |
| 418 |
D(bug("Initialization complete\n")); |
| 419 |
|
| 420 |
|
| 421 |
#ifdef ENABLE_MON |
| 422 |
// Setup SIGINT handler to enter mon |
| 423 |
sigemptyset(&sigint_sa.sa_mask); |
| 424 |
sigint_sa.sa_handler = (void (*)(int))sigint_handler; |
| 425 |
sigint_sa.sa_flags = 0; |
| 426 |
sigaction(SIGINT, &sigint_sa, NULL); |
| 427 |
#endif |
| 428 |
|
| 429 |
|
| 430 |
return YES; |
| 431 |
} |
| 432 |
|
| 433 |
#undef QuitEmulator() |
| 434 |
|
| 435 |
|
| 436 |
/* |
| 437 |
* Quit emulator |
| 438 |
*/ |
| 439 |
|
| 440 |
void QuitEmuNoExit() |
| 441 |
{ |
| 442 |
D(bug("QuitEmulator\n")); |
| 443 |
|
| 444 |
// Exit 680x0 emulation |
| 445 |
Exit680x0(); |
| 446 |
|
| 447 |
// Deinitialize everything |
| 448 |
ExitAll(); |
| 449 |
|
| 450 |
// Free ROM/RAM areas |
| 451 |
if (RAMBaseHost != VM_MAP_FAILED) { |
| 452 |
vm_release(RAMBaseHost, RAMSize + 0x100000); |
| 453 |
RAMBaseHost = NULL; |
| 454 |
ROMBaseHost = NULL; |
| 455 |
} |
| 456 |
|
| 457 |
#if USE_SCRATCHMEM_SUBTERFUGE |
| 458 |
// Delete scratch memory area |
| 459 |
if (ScratchMem != (uint8 *)VM_MAP_FAILED) { |
| 460 |
vm_release((void *)(ScratchMem - SCRATCH_MEM_SIZE/2), SCRATCH_MEM_SIZE); |
| 461 |
ScratchMem = NULL; |
| 462 |
} |
| 463 |
#endif |
| 464 |
|
| 465 |
#if REAL_ADDRESSING |
| 466 |
// Delete Low Memory area |
| 467 |
if (lm_area_mapped) |
| 468 |
vm_release(0, 0x2000); |
| 469 |
#endif |
| 470 |
|
| 471 |
// Exit VM wrappers |
| 472 |
vm_exit(); |
| 473 |
|
| 474 |
// Exit system routines |
| 475 |
SysExit(); |
| 476 |
|
| 477 |
// Exit preferences |
| 478 |
PrefsExit(); |
| 479 |
} |
| 480 |
|
| 481 |
void QuitEmulator(void) |
| 482 |
{ |
| 483 |
QuitEmuNoExit(); |
| 484 |
|
| 485 |
// Stop run loop? |
| 486 |
[NSApp terminate: nil]; |
| 487 |
|
| 488 |
exit(0); |
| 489 |
} |
| 490 |
|
| 491 |
|
| 492 |
/* |
| 493 |
* Code was patched, flush caches if neccessary (i.e. when using a real 680x0 |
| 494 |
* or a dynamically recompiling emulator) |
| 495 |
*/ |
| 496 |
|
| 497 |
void FlushCodeCache(void *start, uint32 size) |
| 498 |
{ |
| 499 |
#if USE_JIT |
| 500 |
if (UseJIT) |
| 501 |
flush_icache_range((uint8 *)start, size); |
| 502 |
#endif |
| 503 |
} |
| 504 |
|
| 505 |
|
| 506 |
/* |
| 507 |
* SIGINT handler, enters mon |
| 508 |
*/ |
| 509 |
|
| 510 |
#ifdef ENABLE_MON |
| 511 |
static void sigint_handler(...) |
| 512 |
{ |
| 513 |
uaecptr nextpc; |
| 514 |
extern void m68k_dumpstate(uaecptr *nextpc); |
| 515 |
m68k_dumpstate(&nextpc); |
| 516 |
VideoQuitFullScreen(); |
| 517 |
char *arg[4] = {"mon", "-m", "-r", NULL}; |
| 518 |
mon(3, arg); |
| 519 |
QuitEmulator(); |
| 520 |
} |
| 521 |
#endif |
| 522 |
|
| 523 |
|
| 524 |
#ifdef HAVE_PTHREADS |
| 525 |
/* |
| 526 |
* Pthread configuration |
| 527 |
*/ |
| 528 |
|
| 529 |
void Set_pthread_attr(pthread_attr_t *attr, int priority) |
| 530 |
{ |
| 531 |
pthread_attr_init(attr); |
| 532 |
#if defined(_POSIX_THREAD_PRIORITY_SCHEDULING) |
| 533 |
// Some of these only work for superuser |
| 534 |
if (geteuid() == 0) { |
| 535 |
pthread_attr_setinheritsched(attr, PTHREAD_EXPLICIT_SCHED); |
| 536 |
pthread_attr_setschedpolicy(attr, SCHED_FIFO); |
| 537 |
struct sched_param fifo_param; |
| 538 |
fifo_param.sched_priority = ((sched_get_priority_min(SCHED_FIFO) |
| 539 |
+ sched_get_priority_max(SCHED_FIFO)) |
| 540 |
/ 2 + priority); |
| 541 |
pthread_attr_setschedparam(attr, &fifo_param); |
| 542 |
} |
| 543 |
if (pthread_attr_setscope(attr, PTHREAD_SCOPE_SYSTEM) != 0) { |
| 544 |
#ifdef PTHREAD_SCOPE_BOUND_NP |
| 545 |
// If system scope is not available (eg. we're not running |
| 546 |
// with CAP_SCHED_MGT capability on an SGI box), try bound |
| 547 |
// scope. It exposes pthread scheduling to the kernel, |
| 548 |
// without setting realtime priority. |
| 549 |
pthread_attr_setscope(attr, PTHREAD_SCOPE_BOUND_NP); |
| 550 |
#endif |
| 551 |
} |
| 552 |
#endif |
| 553 |
} |
| 554 |
#endif // HAVE_PTHREADS |
| 555 |
|
| 556 |
|
| 557 |
/* |
| 558 |
* Mutexes |
| 559 |
*/ |
| 560 |
|
| 561 |
#ifdef HAVE_PTHREADS |
| 562 |
|
| 563 |
struct B2_mutex { |
| 564 |
B2_mutex() { |
| 565 |
pthread_mutexattr_t attr; |
| 566 |
pthread_mutexattr_init(&attr); |
| 567 |
// Initialize the mutex for priority inheritance -- |
| 568 |
// required for accurate timing. |
| 569 |
#ifdef HAVE_PTHREAD_MUTEXATTR_SETPROTOCOL |
| 570 |
pthread_mutexattr_setprotocol(&attr, PTHREAD_PRIO_INHERIT); |
| 571 |
#endif |
| 572 |
#if defined(HAVE_PTHREAD_MUTEXATTR_SETTYPE) && defined(PTHREAD_MUTEX_NORMAL) |
| 573 |
pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_NORMAL); |
| 574 |
#endif |
| 575 |
#ifdef HAVE_PTHREAD_MUTEXATTR_SETPSHARED |
| 576 |
pthread_mutexattr_setpshared(&attr, PTHREAD_PROCESS_PRIVATE); |
| 577 |
#endif |
| 578 |
pthread_mutex_init(&m, &attr); |
| 579 |
pthread_mutexattr_destroy(&attr); |
| 580 |
} |
| 581 |
~B2_mutex() { |
| 582 |
pthread_mutex_trylock(&m); // Make sure it's locked before |
| 583 |
pthread_mutex_unlock(&m); // unlocking it. |
| 584 |
pthread_mutex_destroy(&m); |
| 585 |
} |
| 586 |
pthread_mutex_t m; |
| 587 |
}; |
| 588 |
|
| 589 |
B2_mutex *B2_create_mutex(void) |
| 590 |
{ |
| 591 |
return new B2_mutex; |
| 592 |
} |
| 593 |
|
| 594 |
void B2_lock_mutex(B2_mutex *mutex) |
| 595 |
{ |
| 596 |
pthread_mutex_lock(&mutex->m); |
| 597 |
} |
| 598 |
|
| 599 |
void B2_unlock_mutex(B2_mutex *mutex) |
| 600 |
{ |
| 601 |
pthread_mutex_unlock(&mutex->m); |
| 602 |
} |
| 603 |
|
| 604 |
void B2_delete_mutex(B2_mutex *mutex) |
| 605 |
{ |
| 606 |
delete mutex; |
| 607 |
} |
| 608 |
|
| 609 |
#else |
| 610 |
|
| 611 |
struct B2_mutex { |
| 612 |
int dummy; |
| 613 |
}; |
| 614 |
|
| 615 |
B2_mutex *B2_create_mutex(void) |
| 616 |
{ |
| 617 |
return new B2_mutex; |
| 618 |
} |
| 619 |
|
| 620 |
void B2_lock_mutex(B2_mutex *mutex) |
| 621 |
{ |
| 622 |
} |
| 623 |
|
| 624 |
void B2_unlock_mutex(B2_mutex *mutex) |
| 625 |
{ |
| 626 |
} |
| 627 |
|
| 628 |
void B2_delete_mutex(B2_mutex *mutex) |
| 629 |
{ |
| 630 |
delete mutex; |
| 631 |
} |
| 632 |
|
| 633 |
#endif |
| 634 |
|
| 635 |
|
| 636 |
/* |
| 637 |
* Interrupt flags (must be handled atomically!) |
| 638 |
*/ |
| 639 |
|
| 640 |
uint32 InterruptFlags = 0; |
| 641 |
|
| 642 |
void SetInterruptFlag(uint32 flag) |
| 643 |
{ |
| 644 |
LOCK_INTFLAGS; |
| 645 |
InterruptFlags |= flag; |
| 646 |
UNLOCK_INTFLAGS; |
| 647 |
} |
| 648 |
|
| 649 |
void ClearInterruptFlag(uint32 flag) |
| 650 |
{ |
| 651 |
LOCK_INTFLAGS; |
| 652 |
InterruptFlags &= ~flag; |
| 653 |
UNLOCK_INTFLAGS; |
| 654 |
} |
| 655 |
|
| 656 |
|
| 657 |
/* |
| 658 |
* Display error alert |
| 659 |
*/ |
| 660 |
|
| 661 |
void ErrorAlert(const char *text) |
| 662 |
{ |
| 663 |
NSString *title = [NSString stringWithCString: |
| 664 |
GetString(STR_ERROR_ALERT_TITLE) ]; |
| 665 |
NSString *error = [NSString stringWithCString: text]; |
| 666 |
NSString *button = [NSString stringWithCString: GetString(STR_QUIT_BUTTON) ]; |
| 667 |
|
| 668 |
NSLog(error); |
| 669 |
if ( PrefsFindBool("nogui") ) |
| 670 |
return; |
| 671 |
VideoQuitFullScreen(); |
| 672 |
NSRunCriticalAlertPanel(title, error, button, nil, nil); |
| 673 |
} |
| 674 |
|
| 675 |
|
| 676 |
/* |
| 677 |
* Display warning alert |
| 678 |
*/ |
| 679 |
|
| 680 |
void WarningAlert(const char *text) |
| 681 |
{ |
| 682 |
NSString *title = [NSString stringWithCString: |
| 683 |
GetString(STR_WARNING_ALERT_TITLE) ]; |
| 684 |
NSString *warning = [NSString stringWithCString: text]; |
| 685 |
NSString *button = [NSString stringWithCString: GetString(STR_OK_BUTTON) ]; |
| 686 |
|
| 687 |
NSLog(warning); |
| 688 |
if ( PrefsFindBool("nogui") ) |
| 689 |
return; |
| 690 |
VideoQuitFullScreen(); |
| 691 |
NSRunAlertPanel(title, warning, button, nil, nil); |
| 692 |
} |
| 693 |
|
| 694 |
|
| 695 |
/* |
| 696 |
* Display choice alert |
| 697 |
*/ |
| 698 |
|
| 699 |
bool ChoiceAlert(const char *text, const char *pos, const char *neg) |
| 700 |
{ |
| 701 |
NSString *title = [NSString stringWithCString: |
| 702 |
GetString(STR_WARNING_ALERT_TITLE) ]; |
| 703 |
NSString *warning = [NSString stringWithCString: text]; |
| 704 |
NSString *yes = [NSString stringWithCString: pos]; |
| 705 |
NSString *no = [NSString stringWithCString: neg]; |
| 706 |
|
| 707 |
return NSRunInformationalAlertPanel(title, warning, yes, no, nil); |
| 708 |
} |
