Initial Alpine Version

1 files changed, 117 insertions, 0 deletions

diff --git a/pith/osdep/pipe.h b/pith/osdep/pipe.h
new file mode 100644
index 00000000..589fc839
--- /dev/null
+++ b/pith/osdep/pipe.h
@@ -0,0 +1,117 @@
+/*
+ * $Id: pipe.h 769 2007-10-24 00:15:40Z hubert@u.washington.edu $
+ *
+ * ========================================================================
+ * Copyright 2006 University of Washington
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * ========================================================================
+ */
+
+#ifndef PITH_OSDEP_PIPE_INCLUDED
+#define PITH_OSDEP_PIPE_INCLUDED
+
+/* Standard I/O File Descriptor Definitions  */
+#ifndef	STDIN_FILENO
+#define	STDIN_FILENO	0
+#endif
+#ifndef	STDOUT_FILENO
+#define	STDOUT_FILENO	1
+#endif
+#ifndef	STDERR_FILENO
+#define	STDERR_FILENO	2
+#endif
+
+
+/*
+ * Flags for the pipe command routines...
+ */
+#define	PIPE_WRITE	0x0001			/* set up pipe for reading */
+#define	PIPE_READ	0x0002			/* set up pipe for reading */
+#define	PIPE_NOSHELL	0x0004			/* don't exec in shell     */
+#define	PIPE_USER	0x0008			/* user mode		   */
+#define	PIPE_STDERR	0x0010			/* stderr to child output  */
+#define	PIPE_PROT	0x0020			/* protected mode	   */
+#define	PIPE_RESET	0x0040			/* reset terminal mode     */
+#define	PIPE_DESC	0x0080			/* no stdio desc wrapping  */
+#define	PIPE_SILENT	0x0100			/* no screen clear, etc	   */
+#define PIPE_RUNNOW     0x0200			/* don't wait for child (PC-Pine) */
+#define PIPE_RAW        0x0400			/* don't convert to locale */
+#define PIPE_NONEWMAIL  0x0800			/* don't call new_mail     */
+
+#ifdef _WINDOWS
+/*
+ * Flags for mswin_exec_and_wait
+ */
+#define MSWIN_EAW_CAPT_STDERR     0x0001
+#define MSWIN_EAW_CTRL_C_CANCELS  0x0002
+#endif
+
+
+/*
+ * Reaper flags
+ */
+#define	PR_NONE		0x0000
+#ifdef	WNOHANG
+#define	PR_NOHANG	0x0001
+#endif
+
+/*
+ * open_system_pipe callback so caller can insert code, typically interface
+ * stuff right before/after the fork and before/after wait
+ */
+#define	OSB_PRE_OPEN	0x0001
+#define	OSB_POST_OPEN	0x0002
+#define	OSB_PRE_CLOSE	0x0004
+#define	OSB_POST_CLOSE	0x0008
+
+/*
+ * stucture required for the pipe commands...
+ */
+typedef struct pipe_s {
+    pid_t    pid;				/* child's process id       */
+    int	     mode,				/* mode flags used to open  */
+	     timeout,				/* wait this long for child */
+	     old_timeo;				/* previous active alarm    */
+    RETSIGTYPE (*hsig)(int),			/* previously installed...  */
+	       (*isig)(int),			/* handlers		    */
+	       (*qsig)(int),
+	       (*alrm)(int),
+	       (*chld)(int);
+    union {
+	FILE *f;
+	int   d;
+    }	     in;				/* input data handle	    */
+    union {
+	FILE *f;
+	int   d;
+    }	     out;				/* output data handle	    */
+    char   **argv,				/* any necessary args	    */
+	    *args,
+	    *tmp;				/* pointer to stuff	    */
+#ifdef	_WINDOWS
+    char    *infile;                            /* file containing pipe's stdin  */
+    char    *outfile;                           /* file containing pipe's stdout */
+    char    *command;				/* command to execute */
+    int      exit_code;                         /* proc rv if run right away */
+    int      deloutfile;                        /* need to rm outfile at close */
+#endif
+} PIPE_S;
+
+
+/*
+ * Exported Prototypes
+ */
+PIPE_S	*open_system_pipe(char *, char **, char **, int, int,
+			  void (*)(PIPE_S *, int, void *), void (*)(char *));
+int	 close_system_pipe(PIPE_S **, int *, void (*)(PIPE_S *, int, void *));
+int	 pipe_close_write(PIPE_S *);
+pid_t	 process_reap(pid_t, int *, int);
+
+
+#endif /* PITH_OSDEP_PIPE_INCLUDED */