upstream/mercurial-mirror Files · contrib/chg/util.h

filectx: add an overlayfilectx class...

filectx: add an overlayfilectx class The end goal is to make it possible to avoid potential expensive fctx.data() when unnecessary. While memctx is useful for creating new file contexts, there are many cases where we could reuse an existing raw file revision (amend, histedit, rebase, process a revision constructed by a remote peer, etc). The overlayfilectx class is made to support such reuse cases. Together with a later patch, hash calculation and expensive flag processor could be avoided.

Yuya Nishihara - - Load All Authors

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      /*

       * Utility functions

       *

       * Copyright (c) 2011 Yuya Nishihara <yuya@tcha.org>

       *

       * This software may be used and distributed according to the terms of the

       * GNU General Public License version 2 or any later version.

       */

      #ifndef UTIL_H_

      #define UTIL_H_

      #ifdef __GNUC__

      #define PRINTF_FORMAT_ __attribute__((format(printf, 1, 2)))

      #define UNUSED_ __attribute__((unused))

      #else

      #define PRINTF_FORMAT_

      #define UNUSED_

      #endif

      void abortmsg(const char *fmt, ...) PRINTF_FORMAT_;

      void abortmsgerrno(const char *fmt, ...) PRINTF_FORMAT_;

      void enablecolor(void);

      void enabledebugmsg(void);

      void debugmsg(const char *fmt, ...) PRINTF_FORMAT_;

      void fchdirx(int dirfd);

      void fsetcloexec(int fd);

      void *mallocx(size_t size);

      void *reallocx(void *ptr, size_t size);

      int runshellcmd(const char *cmd, const char *envp[], const char *cwd);

      #endif  /* UTIL_H_ */

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				/*
				* Utility functions
				*
				* Copyright (c) 2011 Yuya Nishihara <yuya@tcha.org>
				*
				* This software may be used and distributed according to the terms of the
				* GNU General Public License version 2 or any later version.
				*/

				#ifndef UTIL_H_
				#define UTIL_H_

				#ifdef __GNUC__
				#define PRINTF_FORMAT_ __attribute__((format(printf, 1, 2)))
				#define UNUSED_ __attribute__((unused))
				#else
				#define PRINTF_FORMAT_
				#define UNUSED_
				#endif

				void abortmsg(const char *fmt, ...) PRINTF_FORMAT_;
				void abortmsgerrno(const char *fmt, ...) PRINTF_FORMAT_;

				void enablecolor(void);
				void enabledebugmsg(void);
				void debugmsg(const char *fmt, ...) PRINTF_FORMAT_;

				void fchdirx(int dirfd);
				void fsetcloexec(int fd);
				void *mallocx(size_t size);
				void reallocx(void ptr, size_t size);

				int runshellcmd(const char cmd, const char envp[], const char *cwd);

				#endif /* UTIL_H_ */