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| 27da23d5 |
1 | /* |
| 2 | * symbian_utils.cpp |
| 3 | * |
| 4 | * Copyright (c) Nokia 2004-2005. All rights reserved. |
| 5 | * This code is licensed under the same terms as Perl itself. |
| 6 | * |
| 7 | */ |
| 8 | |
| 9 | #define SYMBIAN_UTILS_CPP |
| 10 | #include <e32base.h> |
| 11 | #include <e32std.h> |
| 12 | #include <textresolver.h> |
| 13 | #include <utf.h> |
| 14 | #include <hal.h> |
| 15 | |
| 16 | #include <string.h> |
| 17 | #include <ctype.h> |
| 18 | |
| 19 | #include "PerlBase.h" |
| 20 | |
| 21 | extern "C" { |
| 22 | EXPORT_C int symbian_sys_init(int *argcp, char ***argvp) |
| 23 | { |
| 24 | #ifdef PERL_GLOBAL_STRUCT /* Avoid unused variable warning. */ |
| 25 | dVAR; |
| 26 | #endif |
| 27 | (void)times(&PL_timesbase); |
| 28 | return 0; |
| 29 | } |
| 30 | EXPORT_C SSize_t symbian_read_stdin(const int fd, char *b, int n) |
| 31 | { |
| 32 | #ifdef PERL_GLOBAL_STRUCT /* Avoid unused variable warning. */ |
| 33 | dVAR; |
| 34 | #endif |
| 35 | return ((CPerlBase*)PL_appctx)->ConsoleRead(fd, b, n); |
| 36 | } |
| 37 | EXPORT_C SSize_t symbian_write_stdout(const int fd, const char *b, int n) |
| 38 | { |
| 39 | #ifdef PERL_GLOBAL_STRUCT /* Avoid unused variable warning. */ |
| 40 | dVAR; |
| 41 | #endif |
| 42 | return ((CPerlBase*)PL_appctx)->ConsoleWrite(fd, b, n); |
| 43 | } |
| 44 | static const char NullErr[] = ""; |
| 45 | EXPORT_C char* symbian_get_error_string(const TInt error) |
| 46 | { |
| 47 | dTHX; |
| 48 | if (error >= 0) |
| 49 | return strerror(error); |
| 50 | CTextResolver* textResolver = CTextResolver::NewL(); |
| 51 | CleanupStack::PushL(textResolver); |
| 52 | TBuf<KErrorResolverMaxTextLength> buf16; |
| 53 | TBuf8<KErrorResolverMaxTextLength> buf8; |
| 54 | if (error != KErrNone) |
| 55 | buf16 = textResolver->ResolveError(error); |
| 56 | if (buf16.Length()) { |
| 57 | if (CnvUtfConverter::ConvertFromUnicodeToUtf8(buf8, buf16) != |
| 58 | KErrNone) { |
| 59 | CleanupStack::PopAndDestroy(textResolver); |
| 60 | return (char*)NullErr; |
| 61 | } |
| 62 | } |
| 63 | SV* sv = Perl_get_sv(aTHX_ "\005", TRUE); /* $^E or ${^OS_ERROR} */ |
| 64 | if (!sv) |
| 65 | return (char*)NullErr; |
| 66 | sv_setpv(sv, (const char *)buf8.PtrZ()); |
| 67 | SvUTF8_on(sv); |
| 68 | CleanupStack::PopAndDestroy(textResolver); |
| 69 | return SvPV_nolen(sv); |
| 70 | } |
| 71 | EXPORT_C void symbian_sleep_usec(const long usec) |
| 72 | { |
| 73 | User::After((TTimeIntervalMicroSeconds32) usec); |
| 74 | } |
| 75 | #define PERL_SYMBIAN_CLK_TCK 100 |
| 76 | EXPORT_C int symbian_get_cpu_time(long* sec, long* usec) |
| 77 | { |
| 78 | // The RThread().GetCpuTime() does not seem to work? |
| 79 | // (it always returns KErrNotSupported) |
| 80 | // TTimeIntervalMicroSeconds ti; |
| 81 | // TInt err = me.GetCpuTime(ti); |
| 82 | dTHX; |
| 83 | TInt periodus; /* tick period in microseconds */ |
| 84 | if (HAL::Get(HALData::ESystemTickPeriod, periodus) != KErrNone) |
| 85 | return -1; |
| 86 | TUint tick = User::TickCount(); |
| 87 | if (PL_timesbase.tms_utime == 0) { |
| 88 | PL_timesbase.tms_utime = tick; |
| 89 | PL_clocktick = PERL_SYMBIAN_CLK_TCK; |
| 90 | } |
| 91 | tick -= PL_timesbase.tms_utime; |
| 92 | TInt64 tickus = TInt64(tick) * TInt64(periodus); |
| 93 | TInt64 tmps = tickus / 1000000; |
| 94 | if (sec) *sec = tmps.Low(); |
| 95 | if (usec) *usec = tickus.Low() - tmps.Low() * 1000000; |
| 96 | return 0; |
| 97 | } |
| 98 | EXPORT_C int symbian_usleep(unsigned int usec) |
| 99 | { |
| 100 | if (usec >= 1000000) { |
| 101 | errno = EINVAL; |
| 102 | return -1; |
| 103 | } |
| 104 | symbian_sleep_usec((const long) usec); |
| 105 | return 0; |
| 106 | } |
| 107 | #define SEC_USEC_TO_CLK_TCK(s, u) \ |
| 108 | (((s) * PERL_SYMBIAN_CLK_TCK) + (u / (1000000 / PERL_SYMBIAN_CLK_TCK))) |
| 109 | EXPORT_C clock_t symbian_times(struct tms *tmsbuf) |
| 110 | { |
| 111 | long s, u; |
| 112 | if (symbian_get_cpu_time(&s, &u) == -1) { |
| 113 | errno = EINVAL; |
| 114 | return -1; |
| 115 | } else { |
| 116 | tmsbuf->tms_utime = SEC_USEC_TO_CLK_TCK(s, u); |
| 117 | tmsbuf->tms_stime = 0; |
| 118 | tmsbuf->tms_cutime = 0; |
| 119 | tmsbuf->tms_cstime = 0; |
| 120 | return tmsbuf->tms_utime; |
| 121 | } |
| 122 | } |
| 123 | class CE32ProcessWait : public CActive |
| 124 | { |
| 125 | public: |
| 126 | CE32ProcessWait() : CActive(EPriorityStandard) { |
| 127 | CActiveScheduler::Add(this); |
| 128 | } |
| 129 | #ifdef __WINS__ |
| 130 | TInt Wait(RThread& aProcess) |
| 131 | #else |
| 132 | TInt Wait(RProcess& aProcess) |
| 133 | #endif |
| 134 | { |
| 135 | aProcess.Logon(iStatus); |
| 136 | aProcess.Resume(); |
| 137 | SetActive(); |
| 138 | CActiveScheduler::Start(); |
| 139 | return iStatus.Int(); |
| 140 | } |
| 141 | private: |
| 142 | void DoCancel() {;} |
| 143 | void RunL() { |
| 144 | CActiveScheduler::Stop(); |
| 145 | } |
| 146 | CActiveSchedulerWait iWait; |
| 147 | }; |
| 148 | class CSpawnIoRedirect : public CBase |
| 149 | { |
| 150 | public: |
| 151 | CSpawnIoRedirect(); |
| 152 | // NOTE: there is no real implementation of I/O redirection yet. |
| 153 | protected: |
| 154 | private: |
| 155 | }; |
| 156 | CSpawnIoRedirect::CSpawnIoRedirect() |
| 157 | { |
| 158 | } |
| 159 | typedef enum { |
| 160 | ESpawnNone = 0x00000000, |
| 161 | ESpawnWait = 0x00000001 |
| 162 | } TSpawnFlag; |
| 163 | static int symbian_spawn(const TDesC& aFilename, |
| 164 | const TDesC& aCommand, |
| 165 | const TSpawnFlag aFlag, |
| 166 | const CSpawnIoRedirect& aIoRedirect) { |
| 167 | TInt error = KErrNone; |
| 168 | #ifdef __WINS__ |
| 169 | const TInt KStackSize = 0x1000; |
| 170 | const TInt KHeapMin = 0x1000; |
| 171 | const TInt KHeapMax = 0x100000; |
| 172 | RThread proc; |
| 173 | RLibrary lib; |
| 174 | HBufC* command = aCommand.Alloc(); |
| 175 | error = lib.Load(aFilename); |
| 176 | if (error == KErrNone) { |
| 177 | TThreadFunction func = (TThreadFunction)(lib.Lookup(1)); |
| 178 | if (func) |
| 179 | error = proc.Create(aFilename, |
| 180 | func, |
| 181 | KStackSize, |
| 182 | (TAny*)command, |
| 183 | &lib, |
| 184 | RThread().Heap(), |
| 185 | KHeapMin, |
| 186 | KHeapMax, |
| 187 | EOwnerProcess); |
| 188 | else |
| 189 | error = KErrNotFound; |
| 190 | lib.Close(); |
| 191 | } |
| 192 | else |
| 193 | delete command; |
| 194 | #else |
| 195 | RProcess proc; |
| 196 | error = proc.Create(aFilename, aCommand); |
| 197 | #endif |
| 198 | if (error == KErrNone) { |
| 199 | if ((TInt)aFlag & (TInt)ESpawnWait) { |
| 200 | CE32ProcessWait* w = new CE32ProcessWait(); |
| 201 | if (w) { |
| 202 | error = w->Wait(proc); |
| 203 | delete w; |
| 204 | } else |
| 205 | error = KErrNoMemory; |
| 206 | } else |
| 207 | proc.Resume(); |
| 208 | proc.Close(); |
| 209 | } |
| 210 | return error; |
| 211 | } |
| 212 | static int symbian_spawner(const char *command, TSpawnFlag aFlags) |
| 213 | { |
| 214 | TBuf<KMaxFileName> aFilename; |
| 215 | TBuf<KMaxFileName> aCommand; |
| 216 | TSpawnFlag aSpawnFlags = ESpawnWait; |
| 217 | CSpawnIoRedirect iord; |
| 218 | char *p = (char*)command; |
| 219 | |
| 220 | // The recognized syntax is: "cmd [args] [&]". Since one |
| 221 | // cannot pass more than (an argv[0] and) an argv[1] to a |
| 222 | // Symbian process anyway, not much is done to the cmd or |
| 223 | // the args, only backslash quoting. |
| 224 | |
| 225 | // Strip leading whitespace. |
| 226 | while (*p && isspace(*p)) p++; |
| 227 | if (*p) { |
| 228 | // Build argv[0]. |
| 229 | while (*p && !isspace(*p) && *p != '&') { |
| 230 | if (*p == '\\') { |
| 231 | if (p[1]) { |
| 232 | aFilename.Append(p[1]); |
| 233 | p++; |
| 234 | } |
| 235 | |
| 236 | } |
| 237 | else |
| 238 | aFilename.Append(*p); |
| 239 | p++; |
| 240 | } |
| 241 | |
| 242 | if (*p) { |
| 243 | // Skip whitespace between argv[0] and argv[1]. |
| 244 | while(*p && isspace(*p)) p++; |
| 245 | // Build argv[1]. |
| 246 | if (*p) { |
| 247 | char *a = p; |
| 248 | char *b = p + 1; |
| 249 | |
| 250 | while (*b) b++; |
| 251 | if (isspace(b[-1])) { |
| 252 | b--; |
| 253 | while (b > a && isspace(*b)) b--; |
| 254 | b++; |
| 255 | } |
| 256 | if (b > a && b[-1] == '&') { |
| 257 | // Parse backgrounding in any case, |
| 258 | // but turn it off only if wanted. |
| 259 | if ((aFlags & ESpawnWait)) |
| 260 | aSpawnFlags = |
| 261 | (TSpawnFlag) (aSpawnFlags & ~ESpawnWait); |
| 262 | b--; |
| 263 | if (isspace(b[-1])) { |
| 264 | b--; |
| 265 | while (b > a && isspace(*b)) b--; |
| 266 | b++; |
| 267 | } |
| 268 | } |
| 269 | for (p = a; p < b; p++) { |
| 270 | if (*p == '\\') { |
| 271 | if (p[1]) |
| 272 | aCommand.Append(p[1]); |
| 273 | p++; |
| 274 | } |
| 275 | else |
| 276 | aCommand.Append(*p); |
| 277 | } |
| 278 | } |
| 279 | // NOTE: I/O redirection is not yet done. |
| 280 | // Implementing that may require a separate server. |
| 281 | } |
| 282 | } |
| 283 | int spawned = symbian_spawn(aFilename, aCommand, aSpawnFlags, iord); |
| 284 | return spawned == KErrNone ? 0 : -1; |
| 285 | } |
| 286 | EXPORT_C int symbian_do_spawn(const char *command) |
| 287 | { |
| 288 | return symbian_spawner(command, ESpawnWait); |
| 289 | } |
| 290 | EXPORT_C int symbian_do_spawn_nowait(const char *command) |
| 291 | { |
| 292 | return symbian_spawner(command, ESpawnNone); |
| 293 | } |
| 294 | EXPORT_C int symbian_do_aspawn(void* vreally, void* vmark, void* sp) |
| 295 | { |
| 296 | return -1; |
| 297 | } |
| 298 | } |
| 299 | |
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