[SCM] make branch, master, updated. moved-to-git-31-gda7df54

[Eli Zaretskii]

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- Log -----------------------------------------------------------------
commit da7df54309eb759837a289ade900fe8e3d6ddc36
Author: Eli Zaretskii <address@hidden>
Date:   Sat Apr 27 14:20:49 2013 +0300

    Support --output-sync on MS-Windows.
    
     w32/compat/posixfcn.c: New file, with emulations of Posix
     functions and Posix functionality for MS-Windows.
     w32/subproc/sub_proc.c: Include io.h.
     (process_noinherit): New function, forces a file descriptor to not
     be inherited by child processes.
     (process_easy): Accept two additional arguments, and use them to
     set up the standard output and standard error handles of the child
     process.
     w32/include/sub_proc.h (process_easy): Adjust prototype.
     (process_noinherit): Add prototype.
    
     read.c [WINDOWS32]: Include windows.h and sub_proc.h.
     makeint.h (LOCALEDIR) [WINDOWS32}: Define to NULL if not
     defined.  This is needed because the MS-Windows build doesn't have
     a canonical place for LOCALEDIR.
     (WIN32_LEAN_AND_MEAN) [WINDOWS32]: Define, to avoid getting from
     windows.h header too much stuff that could conflict with the code.
     main.c <sync_mutex>: New static variable.
     <switches>: Add support for "--sync-mutex" switch.
     (decode_output_sync_flags): Decode the --sync-mutex= switch.
     (prepare_mutex_handle_string) [WINDOWS32]: New function.
     (main): Add "output-sync" to .FEATURES.
     job.h (CLOSE_ON_EXEC) [WINDOWS32]: Define to call
     process_noinherit.
     (F_GETFD, F_SETLKW, F_WRLCK, F_UNLCK, struct flock) [WINDOWS32]:
     New macros.
     (RECORD_SYNC_MUTEX): New macro, a no-op for Posix platforms.
     (sync_handle_t): New typedef.
     job.c <sync_handle>: Change type to sync_handle_t.
     (FD_NOT_EMPTY): Seek to the file's end.  Suggested by Frank
     Heckenbach <address@hidden>.
     (pump_from_tmp_fd) [WINDOWS32]: Switch to_fd to binary mode for
     the duration of this function, and then change back before
     returning.
     (start_job_command) [WINDOWS32]: Support output_sync mode on
     MS-Windows.  Use a system-wide mutex instead of locking
     stdout/stderr.  Call process_easy with two additional arguments:
     child->outfd and child->errfd.
     (exec_command) [WINDOWS32]: Pass two additional arguments, both
     -1, to process_easy, to adjust for the changed function signature.
     function.c (windows32_openpipe) [WINDOWS32]: This function now
     returns an int, which is -1 if it fails and zero otherwise.  It
     also calls 'error' instead of 'fatal', to avoid exiting
     prematurely.
     (func_shell_base) [WINDOWS32]: Call perror_with_name if
     windows32_openpipe fails, now that it always returns.  This avoids
     a compiler warning that error_prefix is not used in the MS-Windows
     build.
     config.h.W32.template (OUTPUT_SYNC): Define.
     build_w32.bat: Add w32/compat/posixfcn.c to compilation and
     linking commands.
    
     From Frank Heckenbach <address@hidden>:
     job.c (sync_output): Don't discard the output if
     acquire_semaphore fails; instead, dump the output unsynchronized.

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog              |   79 ++++++++++++---
 build_w32.bat          |    7 +-
 config.h.W32.template  |    2 +
 function.c             |   36 +++++---
 job.c                  |   81 +++++++++++++--
 job.h                  |   47 +++++++++-
 main.c                 |   47 +++++++++
 makeint.h              |    8 ++
 read.c                 |    5 +-
 w32/compat/posixfcn.c  |  258 ++++++++++++++++++++++++++++++++++++++++++++++++
 w32/include/sub_proc.h |    4 +-
 w32/subproc/sub_proc.c |   24 ++++-
 12 files changed, 556 insertions(+), 42 deletions(-)
 create mode 100644 w32/compat/posixfcn.c


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