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Diffstat (limited to 'gcc/ada/expect.c')
| -rw-r--r-- | gcc/ada/expect.c | 240 |
1 files changed, 240 insertions, 0 deletions
diff --git a/gcc/ada/expect.c b/gcc/ada/expect.c new file mode 100644 index 00000000000..591401cf1dc --- /dev/null +++ b/gcc/ada/expect.c @@ -0,0 +1,240 @@ +/**************************************************************************** + * * + * GNAT COMPILER COMPONENTS * + * * + * E X P E C T * + * * + * C Implementation File * + * * + * $Revision: 1.1 $ + * * + * Copyright (C) 2001 Ada Core Technologies, Inc. * + * * + * GNAT is free software; you can redistribute it and/or modify it under * + * terms of the GNU General Public License as published by the Free Soft- * + * ware Foundation; either version 2, or (at your option) any later ver- * + * sion. GNAT is distributed in the hope that it will be useful, but WITH- * + * OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY * + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * + * for more details. You should have received a copy of the GNU General * + * Public License distributed with GNAT; see file COPYING. If not, write * + * to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, * + * MA 02111-1307, USA. * + * * + * As a special exception, if you link this file with other files to * + * produce an executable, this file does not by itself cause the resulting * + * executable to be covered by the GNU General Public License. This except- * + * ion does not however invalidate any other reasons why the executable * + * file might be covered by the GNU Public License. * + * * + * GNAT was originally developed by the GNAT team at New York University. * + * It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). * + * * + ****************************************************************************/ + +#ifdef __alpha_vxworks +#include "vxWorks.h" +#endif + +#ifdef IN_RTS +#define POSIX +#include "tconfig.h" +#include "tsystem.h" +#else +#include "config.h" +#include "system.h" +#endif + +/* This file provides the low level functionalities needed to implement Expect + capabilities in GNAT.Expect. + Implementations for unix and windows systems is provided. + Dummy stubs are also provided for other systems. */ + +#ifdef _AIX +/* Work around the fact that gcc/cpp does not define "unix" under AiX. */ +#define unix +#endif + +#ifdef _WIN32 + +#include <windows.h> +#include <process.h> + +/* ??? Provide a no-op for now */ + +void +kill () +{ +} + +int +__gnat_expect_fork () +{ + return 0; +} + +void +__gnat_expect_portable_execvp (cmd, argv) + char *cmd; + char *argv[]; +{ + (void) spawnve (_P_NOWAIT, cmd, argv, NULL); +} + +int +__gnat_pipe (fd) + int *fd; +{ + HANDLE read, write; + + CreatePipe (&read, &write, NULL, 0); + fd[0]=_open_osfhandle (read, 0); + fd[1]=_open_osfhandle (write, 0); + return 0; /* always success */ +} + +int +__gnat_expect_poll (fd, num_fd, timeout, is_set) + int *fd; + int num_fd; + int timeout; + int *is_set; +{ + int i, num; + DWORD avail; + HANDLE handles[num_fd]; + + for (i = 0; i < num_fd; i++) + is_set[i] = 0; + + for (i = 0; i < num_fd; i++) + handles[i] = (HANDLE) _get_osfhandle (fd [i]); + + num = timeout / 10; + + while (1) + { + for (i = 0; i < num_fd; i++) + { + if (!PeekNamedPipe (handles [i], NULL, 0, NULL, &avail, NULL)) + return -1; + + if (avail > 0) + { + is_set[i] = 1; + return 1; + } + } + + if (timeout >= 0 && num == 0) + return 0; + + Sleep (10); + num--; + } +} + +#elif defined (unix) + +#include <sys/time.h> + +#ifndef NO_FD_SET +#define SELECT_MASK fd_set +#else /* !NO_FD_SET */ +#ifndef _AIX +typedef long fd_mask; +#endif /* _AIX */ +#ifdef _IBMR2 +#define SELECT_MASK void +#else /* !_IBMR2 */ +#define SELECT_MASK int +#endif /* !_IBMR2 */ +#endif /* !NO_FD_SET */ + +int +__gnat_pipe (fd) + int *fd; +{ + return pipe (fd); +} + +int +__gnat_expect_fork () +{ + return fork (); +} + +void +__gnat_expect_portable_execvp (cmd, argv) + char *cmd; + char *argv[]; +{ + execvp (cmd, argv); +} + +int +__gnat_expect_poll (fd, num_fd, timeout, is_set) + int *fd; + int num_fd; + int timeout; + int *is_set; +{ + struct timeval tv; + SELECT_MASK rset; + int max_fd = 0; + int ready; + int i; + + FD_ZERO (&rset); + + for (i = 0; i < num_fd; i++) + { + FD_SET (fd [i], &rset); + if (fd [i] > max_fd) + max_fd = fd [i]; + } + + tv.tv_sec = timeout / 1000; + tv.tv_usec = (timeout % 1000) * 1000; + + ready = select (max_fd + 1, &rset, NULL, NULL, timeout == -1 ? NULL : &tv); + + if (ready > 0) + for (i = 0; i < num_fd; i++) + is_set [i] = (FD_ISSET (fd [i], &rset) ? 1 : 0); + + return ready; +} + +#else + +int +__gnat_pipe (fd) + int *fd; +{ + return -1; +} + +int +__gnat_expect_fork () +{ + return -1; +} + +void +__gnat_expect_portable_execvp (cmd, argv) + char *cmd; + char *argv[]; +{ +} + +int +__gnat_expect_poll (fd, num_fd, timeout, is_set) + int *fd; + int num_fd; + int timeout; + int *is_set; +{ + return -1; +} +#endif |