Differences From Artifact [c381d0d5f6]:
- File src/exceptions/OFException.m — part of check-in [374e1a1bfa] at 2021-01-02 22:04:26 on branch trunk — Update copyright (user: js, size: 7467) [annotate] [blame] [check-ins using] [more...]
To Artifact [5ced4219b2]:
- File
src/exceptions/OFException.m
— part of check-in
[2fcf5a3052]
at
2021-04-29 23:24:22
on branch trunk
— Clean up struct and enum typedefs
With TYPEDEF_HIDES_STRUCT set, Doxygen properly handles anonymous
structs and enums that are typedef'd. (user: js, size: 7468) [annotate] [blame] [check-ins using] [more...]
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23 24 25 26 27 28 29 30 31 32 33 34 35 36 | #ifdef HAVE_DLFCN_H # include <dlfcn.h> #endif #import "OFException.h" #import "OFArray.h" #import "OFLocale.h" #import "OFString.h" #import "OFSystemInfo.h" #import "OFInitializationFailedException.h" #import "OFLockFailedException.h" #import "OFUnlockFailedException.h" | > > > < < < < | | | | | | | 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 |
#ifdef HAVE_DLFCN_H
# include <dlfcn.h>
#endif
#import "OFException.h"
#import "OFArray.h"
#import "OFLocale.h"
#ifdef OF_HAVE_THREADS
# import "OFPlainMutex.h"
#endif
#import "OFString.h"
#import "OFSystemInfo.h"
#import "OFInitializationFailedException.h"
#import "OFLockFailedException.h"
#import "OFUnlockFailedException.h"
#if defined(OF_WINDOWS) && defined(OF_HAVE_SOCKETS)
# include <winerror.h>
#endif
#if defined(OF_ARM) && !defined(__ARM_DWARF_EH__)
# define HAVE_ARM_EHABI_EXCEPTIONS
#endif
struct _Unwind_Context;
typedef enum {
_URC_OK = 0,
_URC_END_OF_STACK = 5
} _Unwind_Reason_Code;
struct BacktraceCtx {
void **backtrace;
uint8_t i;
};
#ifdef HAVE__UNWIND_BACKTRACE
extern _Unwind_Reason_Code _Unwind_Backtrace(
_Unwind_Reason_Code (*)(struct _Unwind_Context *, void *), void *);
#endif
#ifndef HAVE_ARM_EHABI_EXCEPTIONS
extern uintptr_t _Unwind_GetIP(struct _Unwind_Context *);
#else
extern int _Unwind_VRS_Get(struct _Unwind_Context *, int, uint32_t, int,
void *);
#endif
#if !defined(HAVE_STRERROR_R) && defined(OF_HAVE_THREADS)
static OFPlainMutex mutex;
OF_CONSTRUCTOR()
{
OFEnsure(OFPlainMutexNew(&mutex) == 0);
}
OF_DESTRUCTOR()
{
OFPlainMutexFree(&mutex);
}
#endif
OFString *
OFStrError(int errNo)
{
OFString *ret;
#ifdef HAVE_STRERROR_R
char buffer[256];
#endif
if (errNo == 0)
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187 188 189 190 191 192 193 | if (strerror_r(errNo, buffer, 256) != 0) return @"Unknown error (strerror_r failed)"; ret = [OFString stringWithCString: buffer encoding: [OFLocale encoding]]; #else # ifdef OF_HAVE_THREADS | | | | | 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 |
if (strerror_r(errNo, buffer, 256) != 0)
return @"Unknown error (strerror_r failed)";
ret = [OFString stringWithCString: buffer
encoding: [OFLocale encoding]];
#else
# ifdef OF_HAVE_THREADS
if (OFPlainMutexLock(&mutex) != 0)
@throw [OFLockFailedException exception];
@try {
# endif
ret = [OFString
stringWithCString: strerror(errNo)
encoding: [OFLocale encoding]];
# ifdef OF_HAVE_THREADS
} @finally {
if (OFPlainMutexUnlock(&mutex) != 0)
@throw [OFUnlockFailedException exception];
}
# endif
#endif
return ret;
}
#ifdef OF_WINDOWS
OFString *
OFWindowsStatusToString(LSTATUS status)
{
OFString *string = nil;
void *buffer;
if ([OFSystemInfo isWindowsNT]) {
if (FormatMessageW(FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_ALLOCATE_BUFFER |
|
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251 252 253 254 255 256 257 | return string; } #endif #ifdef HAVE__UNWIND_BACKTRACE static _Unwind_Reason_Code | | | | | 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 |
return string;
}
#endif
#ifdef HAVE__UNWIND_BACKTRACE
static _Unwind_Reason_Code
backtraceCallback(struct _Unwind_Context *ctx, void *data)
{
struct BacktraceCtx *bt = data;
if (bt->i < OFBacktraceSize) {
# ifndef HAVE_ARM_EHABI_EXCEPTIONS
bt->backtrace[bt->i++] = (void *)_Unwind_GetIP(ctx);
# else
uintptr_t ip;
_Unwind_VRS_Get(ctx, 0, 15, 0, &ip);
bt->backtrace[bt->i++] = (void *)(ip & ~1);
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280 281 282 283 284 285 286 |
{
return [[[self alloc] init] autorelease];
}
#ifdef HAVE__UNWIND_BACKTRACE
- (instancetype)init
{
| | | | < | 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 |
{
return [[[self alloc] init] autorelease];
}
#ifdef HAVE__UNWIND_BACKTRACE
- (instancetype)init
{
struct BacktraceCtx ctx;
self = [super init];
ctx.backtrace = _backtrace;
ctx.i = 0;
_Unwind_Backtrace(backtraceCallback, &ctx);
return self;
}
#endif
- (OFString *)description
{
return [OFString stringWithFormat:
@"An exception of type %@ occurred!", self.class];
}
- (OFArray OF_GENERIC(OFString *) *)backtrace
{
#ifdef HAVE__UNWIND_BACKTRACE
OFMutableArray OF_GENERIC(OFString *) *backtrace =
[OFMutableArray array];
void *pool = objc_autoreleasePoolPush();
for (uint8_t i = 0; i < OFBacktraceSize && _backtrace[i] != NULL; i++) {
# ifdef HAVE_DLADDR
Dl_info info;
if (dladdr(_backtrace[i], &info)) {
OFString *frame;
if (info.dli_sname != NULL) {
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