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author | Antoine Pitrou <solipsis@pitrou.net> | 2010-05-09 15:52:27 (GMT) |
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committer | Antoine Pitrou <solipsis@pitrou.net> | 2010-05-09 15:52:27 (GMT) |
commit | f95a1b3c53bdd678b64aa608d4375660033460c3 (patch) | |
tree | a8bee40b1b14e28ff5978ea519f3035a3c399912 /Parser/myreadline.c | |
parent | bd250300191133d276a71b395b6428081bf825b8 (diff) | |
download | cpython-f95a1b3c53bdd678b64aa608d4375660033460c3.zip cpython-f95a1b3c53bdd678b64aa608d4375660033460c3.tar.gz cpython-f95a1b3c53bdd678b64aa608d4375660033460c3.tar.bz2 |
Recorded merge of revisions 81029 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r81029 | antoine.pitrou | 2010-05-09 16:46:46 +0200 (dim., 09 mai 2010) | 3 lines
Untabify C files. Will watch buildbots.
........
Diffstat (limited to 'Parser/myreadline.c')
-rw-r--r-- | Parser/myreadline.c | 234 |
1 files changed, 117 insertions, 117 deletions
diff --git a/Parser/myreadline.c b/Parser/myreadline.c index 0d8394b..ecb4701 100644 --- a/Parser/myreadline.c +++ b/Parser/myreadline.c @@ -35,64 +35,64 @@ int (*PyOS_InputHook)(void) = NULL; static int my_fgets(char *buf, int len, FILE *fp) { - char *p; - if (PyOS_InputHook != NULL) - (void)(PyOS_InputHook)(); - errno = 0; - p = fgets(buf, len, fp); - if (p != NULL) - return 0; /* No error */ + char *p; + if (PyOS_InputHook != NULL) + (void)(PyOS_InputHook)(); + errno = 0; + p = fgets(buf, len, fp); + if (p != NULL) + return 0; /* No error */ #ifdef MS_WINDOWS - /* In the case of a Ctrl+C or some other external event - interrupting the operation: - Win2k/NT: ERROR_OPERATION_ABORTED is the most recent Win32 - error code (and feof() returns TRUE). - Win9x: Ctrl+C seems to have no effect on fgets() returning - early - the signal handler is called, but the fgets() - only returns "normally" (ie, when Enter hit or feof()) - */ - if (GetLastError()==ERROR_OPERATION_ABORTED) { - /* Signals come asynchronously, so we sleep a brief - moment before checking if the handler has been - triggered (we cant just return 1 before the - signal handler has been called, as the later - signal may be treated as a separate interrupt). - */ - Sleep(1); - if (PyOS_InterruptOccurred()) { - return 1; /* Interrupt */ - } - /* Either the sleep wasn't long enough (need a - short loop retrying?) or not interrupted at all - (in which case we should revisit the whole thing!) - Logging some warning would be nice. assert is not - viable as under the debugger, the various dialogs - mean the condition is not true. - */ - } + /* In the case of a Ctrl+C or some other external event + interrupting the operation: + Win2k/NT: ERROR_OPERATION_ABORTED is the most recent Win32 + error code (and feof() returns TRUE). + Win9x: Ctrl+C seems to have no effect on fgets() returning + early - the signal handler is called, but the fgets() + only returns "normally" (ie, when Enter hit or feof()) + */ + if (GetLastError()==ERROR_OPERATION_ABORTED) { + /* Signals come asynchronously, so we sleep a brief + moment before checking if the handler has been + triggered (we cant just return 1 before the + signal handler has been called, as the later + signal may be treated as a separate interrupt). + */ + Sleep(1); + if (PyOS_InterruptOccurred()) { + return 1; /* Interrupt */ + } + /* Either the sleep wasn't long enough (need a + short loop retrying?) or not interrupted at all + (in which case we should revisit the whole thing!) + Logging some warning would be nice. assert is not + viable as under the debugger, the various dialogs + mean the condition is not true. + */ + } #endif /* MS_WINDOWS */ - if (feof(fp)) { - return -1; /* EOF */ - } + if (feof(fp)) { + return -1; /* EOF */ + } #ifdef EINTR - if (errno == EINTR) { - int s; + if (errno == EINTR) { + int s; #ifdef WITH_THREAD - PyEval_RestoreThread(_PyOS_ReadlineTState); + PyEval_RestoreThread(_PyOS_ReadlineTState); #endif - s = PyErr_CheckSignals(); + s = PyErr_CheckSignals(); #ifdef WITH_THREAD - PyEval_SaveThread(); + PyEval_SaveThread(); #endif - if (s < 0) { - return 1; - } - } + if (s < 0) { + return 1; + } + } #endif - if (PyOS_InterruptOccurred()) { - return 1; /* Interrupt */ - } - return -2; /* Error */ + if (PyOS_InterruptOccurred()) { + return 1; /* Interrupt */ + } + return -2; /* Error */ } @@ -101,41 +101,41 @@ my_fgets(char *buf, int len, FILE *fp) char * PyOS_StdioReadline(FILE *sys_stdin, FILE *sys_stdout, char *prompt) { - size_t n; - char *p; - n = 100; - if ((p = (char *)PyMem_MALLOC(n)) == NULL) - return NULL; - fflush(sys_stdout); - if (prompt) - fprintf(stderr, "%s", prompt); - fflush(stderr); - switch (my_fgets(p, (int)n, sys_stdin)) { - case 0: /* Normal case */ - break; - case 1: /* Interrupt */ - PyMem_FREE(p); - return NULL; - case -1: /* EOF */ - case -2: /* Error */ - default: /* Shouldn't happen */ - *p = '\0'; - break; - } - n = strlen(p); - while (n > 0 && p[n-1] != '\n') { - size_t incr = n+2; - p = (char *)PyMem_REALLOC(p, n + incr); - if (p == NULL) - return NULL; - if (incr > INT_MAX) { - PyErr_SetString(PyExc_OverflowError, "input line too long"); - } - if (my_fgets(p+n, (int)incr, sys_stdin) != 0) - break; - n += strlen(p+n); - } - return (char *)PyMem_REALLOC(p, n+1); + size_t n; + char *p; + n = 100; + if ((p = (char *)PyMem_MALLOC(n)) == NULL) + return NULL; + fflush(sys_stdout); + if (prompt) + fprintf(stderr, "%s", prompt); + fflush(stderr); + switch (my_fgets(p, (int)n, sys_stdin)) { + case 0: /* Normal case */ + break; + case 1: /* Interrupt */ + PyMem_FREE(p); + return NULL; + case -1: /* EOF */ + case -2: /* Error */ + default: /* Shouldn't happen */ + *p = '\0'; + break; + } + n = strlen(p); + while (n > 0 && p[n-1] != '\n') { + size_t incr = n+2; + p = (char *)PyMem_REALLOC(p, n + incr); + if (p == NULL) + return NULL; + if (incr > INT_MAX) { + PyErr_SetString(PyExc_OverflowError, "input line too long"); + } + if (my_fgets(p+n, (int)incr, sys_stdin) != 0) + break; + n += strlen(p+n); + } + return (char *)PyMem_REALLOC(p, n+1); } @@ -152,52 +152,52 @@ char *(*PyOS_ReadlineFunctionPointer)(FILE *, FILE *, char *); char * PyOS_Readline(FILE *sys_stdin, FILE *sys_stdout, char *prompt) { - char *rv; + char *rv; - if (_PyOS_ReadlineTState == PyThreadState_GET()) { - PyErr_SetString(PyExc_RuntimeError, - "can't re-enter readline"); - return NULL; - } - + if (_PyOS_ReadlineTState == PyThreadState_GET()) { + PyErr_SetString(PyExc_RuntimeError, + "can't re-enter readline"); + return NULL; + } - if (PyOS_ReadlineFunctionPointer == NULL) { + + if (PyOS_ReadlineFunctionPointer == NULL) { #ifdef __VMS - PyOS_ReadlineFunctionPointer = vms__StdioReadline; + PyOS_ReadlineFunctionPointer = vms__StdioReadline; #else - PyOS_ReadlineFunctionPointer = PyOS_StdioReadline; + PyOS_ReadlineFunctionPointer = PyOS_StdioReadline; #endif - } - + } + #ifdef WITH_THREAD - if (_PyOS_ReadlineLock == NULL) { - _PyOS_ReadlineLock = PyThread_allocate_lock(); - } + if (_PyOS_ReadlineLock == NULL) { + _PyOS_ReadlineLock = PyThread_allocate_lock(); + } #endif - _PyOS_ReadlineTState = PyThreadState_GET(); - Py_BEGIN_ALLOW_THREADS + _PyOS_ReadlineTState = PyThreadState_GET(); + Py_BEGIN_ALLOW_THREADS #ifdef WITH_THREAD - PyThread_acquire_lock(_PyOS_ReadlineLock, 1); + PyThread_acquire_lock(_PyOS_ReadlineLock, 1); #endif - /* This is needed to handle the unlikely case that the - * interpreter is in interactive mode *and* stdin/out are not - * a tty. This can happen, for example if python is run like - * this: python -i < test1.py - */ - if (!isatty (fileno (sys_stdin)) || !isatty (fileno (sys_stdout))) - rv = PyOS_StdioReadline (sys_stdin, sys_stdout, prompt); - else - rv = (*PyOS_ReadlineFunctionPointer)(sys_stdin, sys_stdout, - prompt); - Py_END_ALLOW_THREADS + /* This is needed to handle the unlikely case that the + * interpreter is in interactive mode *and* stdin/out are not + * a tty. This can happen, for example if python is run like + * this: python -i < test1.py + */ + if (!isatty (fileno (sys_stdin)) || !isatty (fileno (sys_stdout))) + rv = PyOS_StdioReadline (sys_stdin, sys_stdout, prompt); + else + rv = (*PyOS_ReadlineFunctionPointer)(sys_stdin, sys_stdout, + prompt); + Py_END_ALLOW_THREADS #ifdef WITH_THREAD - PyThread_release_lock(_PyOS_ReadlineLock); + PyThread_release_lock(_PyOS_ReadlineLock); #endif - _PyOS_ReadlineTState = NULL; + _PyOS_ReadlineTState = NULL; - return rv; + return rv; } |