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libiberty:

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* pex-common.c: New file.
	* pex-one.c: New file.
	* pexecute.c: New file.
	* pex-common.h: Include <stdio.h>.
	(struct pex_obj): Define.
	(struct pex_funcs): Define.
	(pex_init_common): Declare.
	* pex-unix.c: Rewrite.
	* pex-win32.c: Rewrite.
	* pex-djgpp.c: Rewrite.
	* pex-msdos.c: Rewrite.
	* testsuite/text-pexecute.c: New file.
	* pexecute.txh: Rewrite.
	* configure.ac: Check for wait3 and wait4.  Set CHECK to
	really-check rather than check-cplus-dem.
	* functions.texi: Rebuild.
	* Makefile.in: Rebuild dependencies.
	(CFILES): Add pexecute.c, pex-common.c, pex-one.c.
	(REQUIRED_OFILES): Add pexecute.o, pex-common.o, pex-one.o.
	* testsuite/Makefile.in (really-check): New target.
	(check-pexecute, test-pexecute): New targets.
	* configure: Rebuild.
include:
	* libiberty.h: Include <stdio.h>.
	(PEX_RECORD_TIMES, PEX_USE_PIPES, PEX_SAVE_TEMPS): Define.
	(PEX_LAST, PEX_SEARCH, PEX_SUFFIX, PEX_STDERR_TO_STDOUT): Define.
	(PEX_BINARY_INPUT, PEX_BINARY_OUTPUT): Define.
	(pex_init, pex_run, pex_read_output): Declare.
	(pex_get_status, pex_get_times, pex_free, pex_one): Declare.
	(struct pex_time): Define.
This commit is contained in:
Ian Lance Taylor 2005-03-29 02:15:24 +00:00
parent ae6cf546a7
commit a9b33f4de6
2 changed files with 173 additions and 1 deletions
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10
include/ChangeLog
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@ -1,3 +1,13 @@
2005-03-28 Ian Lance Taylor <ian@airs.com>
* libiberty.h: Include <stdio.h>.
(PEX_RECORD_TIMES, PEX_USE_PIPES, PEX_SAVE_TEMPS): Define.
(PEX_LAST, PEX_SEARCH, PEX_SUFFIX, PEX_STDERR_TO_STDOUT): Define.
(PEX_BINARY_INPUT, PEX_BINARY_OUTPUT): Define.
(pex_init, pex_run, pex_read_output): Declare.
(pex_get_status, pex_get_times, pex_free, pex_one): Declare.
(struct pex_time): Define.
2005-03-28 Mark Mitchell <mark@codesourcery.com> 2005-03-28 Mark Mitchell <mark@codesourcery.com>
* libiberty.h (ffs): Declare, if necessary. * libiberty.h (ffs): Declare, if necessary.

164
include/libiberty.h
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@ -1,6 +1,6 @@
/* Function declarations for libiberty. /* Function declarations for libiberty.
Copyright 2001, 2002 Free Software Foundation, Inc. Copyright 2001, 2002, 2005 Free Software Foundation, Inc.
Note - certain prototypes declared in this header file are for Note - certain prototypes declared in this header file are for
functions whoes implementation copyright does not belong to the functions whoes implementation copyright does not belong to the
@ -46,6 +46,8 @@ extern "C" {
/* Get a definition for va_list. */ /* Get a definition for va_list. */
#include <stdarg.h> #include <stdarg.h>
#include <stdio.h>
/* Build an argument vector from a string. Allocates memory using /* Build an argument vector from a string. Allocates memory using
malloc. Use freeargv to free the vector. */ malloc. Use freeargv to free the vector. */
@ -314,6 +316,166 @@ extern void hex_init (void);
the argument being performed exactly once. */ the argument being performed exactly once. */
#define hex_value(c) ((unsigned int) _hex_value[(unsigned char) (c)]) #define hex_value(c) ((unsigned int) _hex_value[(unsigned char) (c)])
/* Flags for pex_init. These are bits to be or'ed together. */
/* Record subprocess times, if possible. */
#define PEX_RECORD_TIMES 0x1
/* Use pipes for communication between processes, if possible. */
#define PEX_USE_PIPES 0x2
/* Save files used for communication between processes. */
#define PEX_SAVE_TEMPS 0x4
/* Prepare to execute one or more programs, with standard output of
each program fed to standard input of the next.
FLAGS As above.
PNAME The name of the program to report in error messages.
TEMPBASE A base name to use for temporary files; may be NULL to
use a random name.
Returns NULL on error. */
extern struct pex_obj *pex_init (int flags, const char *pname,
const char *tempbase);
/* Flags for pex_run. These are bits to be or'ed together. */
/* Last program in pipeline. Standard output of program goes to
OUTNAME, or, if OUTNAME is NULL, to standard output of caller. Do
not set this if you want to call pex_read_output. After this is
set, pex_run may no longer be called with the same struct
pex_obj. */
#define PEX_LAST 0x1
/* Search for program in executable search path. */
#define PEX_SEARCH 0x2
/* OUTNAME is a suffix. */
#define PEX_SUFFIX 0x4
/* Send program's standard error to standard output. */
#define PEX_STDERR_TO_STDOUT 0x8
/* Input file should be opened in binary mode. This flag is ignored
on Unix. */
#define PEX_BINARY_INPUT 0x10
/* Output file should be opened in binary mode. This flag is ignored
on Unix. For proper behaviour PEX_BINARY_INPUT and
PEX_BINARY_OUTPUT have to match appropriately--i.e., a call using
PEX_BINARY_OUTPUT should be followed by a call using
PEX_BINARY_INPUT. */
#define PEX_BINARY_OUTPUT 0x20
/* Execute one program. Returns NULL on success. On error returns an
error string (typically just the name of a system call); the error
string is statically allocated.
OBJ Returned by pex_init.
FLAGS As above.
EXECUTABLE The program to execute.
ARGV NULL terminated array of arguments to pass to the program.
OUTNAME Sets the output file name as follows:
PEX_SUFFIX set (OUTNAME may not be NULL):
TEMPBASE parameter to pex_init not NULL:
Output file name is the concatenation of TEMPBASE
and OUTNAME.
TEMPBASE is NULL:
Output file name is a random file name ending in
OUTNAME.
PEX_SUFFIX not set:
OUTNAME not NULL:
Output file name is OUTNAME.
OUTNAME NULL, TEMPBASE not NULL:
Output file name is randomly chosen using
TEMPBASE.
OUTNAME NULL, TEMPBASE NULL:
Output file name is randomly chosen.
If PEX_LAST is not set, the output file name is the
name to use for a temporary file holding stdout, if
any (there will not be a file if PEX_USE_PIPES is set
and the system supports pipes). If a file is used, it
will be removed when no longer needed unless
PEX_SAVE_TEMPS is set.
If PEX_LAST is set, and OUTNAME is not NULL, standard
output is written to the output file name. The file
will not be removed. If PEX_LAST and PEX_SUFFIX are
both set, TEMPBASE may not be NULL.
ERRNAME If not NULL, this is the name of a file to which
standard error is written. If NULL, standard error of
the program is standard error of the caller.
ERR On an error return, *ERR is set to an errno value, or
to 0 if there is no relevant errno.
*/
extern const char *pex_run (struct pex_obj *obj, int flags,
const char *executable, char * const *argv,
const char *outname, const char *errname,
int *err);
/* Read the standard output of the last program to be executed.
pex_run can not be called after this. BINARY should be non-zero if
the file should be opened in binary mode; this is ignored on Unix.
Returns NULL on error. Don't call fclose on the returned FILE; it
will be closed by pex_free. */
extern FILE *pex_read_output (struct pex_obj *, int binary);
/* Return exit status of all programs in VECTOR. COUNT indicates the
size of VECTOR. The status codes in the vector are in the order of
the calls to pex_run. Returns 0 on error, 1 on success. */
extern int pex_get_status (struct pex_obj *, int count, int *vector);
/* Return times of all programs in VECTOR. COUNT indicates the size
of VECTOR. struct pex_time is really just struct timeval, but that
is not portable to all systems. Returns 0 on error, 1 on
success. */
struct pex_time
{
unsigned long user_seconds;
unsigned long user_microseconds;
unsigned long system_seconds;
unsigned long system_microseconds;
};
extern int pex_get_times (struct pex_obj *, int count,
struct pex_time *vector);
/* Clean up a pex_obj. */
extern void pex_free (struct pex_obj *);
/* Just execute one program. Return value is as for pex_run.
FLAGS Combination of PEX_SEARCH and PEX_STDERR_TO_STDOUT.
EXECUTABLE As for pex_run.
ARGV As for pex_run.
PNAME As for pex_init.
OUTNAME As for pex_run when PEX_LAST is set.
ERRNAME As for pex_run.
STATUS Set to exit status on success.
ERR As for pex_run.
*/
extern const char *pex_one (int flags, const char *executable,
char * const *argv, const char *pname,
const char *outname, const char *errname,
int *status, int *err);
/* pexecute and pwait are the old pexecute interface, still here for
backward compatibility. Don't use these for new code. Instead,
use pex_init/pex_run/pex_get_status/pex_free, or pex_one. */
/* Definitions used by the pexecute routine. */ /* Definitions used by the pexecute routine. */
#define PEXECUTE_FIRST 1 #define PEXECUTE_FIRST 1