upstream/mercurial-mirror Files · mercurial/mpatch.h

hgweb: always return iterable from @webcommand functions (API)...

hgweb: always return iterable from @webcommand functions (API) We had to hack up this function to support our transition to the new response API. Now that we're done with the transition (!!), we can return to returning an iterator of content chunks from these functions. It is tempting to return a normal object and not a generator. However, as the keyword extension demonstrates, extensions may wish to wrap commands and have a try..finally block around execution. Since there is a generator producing content and that generator could be executing code, the try..finally needs to live for as long as the generator is running. That means we have to return a generator so wrappers can consume the generator inside a try..finally. .. api:: hgweb @webcommand functions must use the new response object passed in via ``web.res`` to initiate sending of a response. The hgweb WSGI application will no longer start sending the response automatically. Differential Revision: https://phab.mercurial-scm.org/D2796

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      #ifndef _HG_MPATCH_H_

      #define _HG_MPATCH_H_

      #define MPATCH_ERR_NO_MEM -3

      #define MPATCH_ERR_CANNOT_BE_DECODED -2

      #define MPATCH_ERR_INVALID_PATCH -1

      struct mpatch_frag {

      	int start, end, len;

      	const char *data;

      };

      struct mpatch_flist {

      	struct mpatch_frag *base, *head, *tail;

      };

      int mpatch_decode(const char *bin, ssize_t len, struct mpatch_flist **res);

      ssize_t mpatch_calcsize(ssize_t len, struct mpatch_flist *l);

      void mpatch_lfree(struct mpatch_flist *a);

      int mpatch_apply(char *buf, const char *orig, ssize_t len,

                       struct mpatch_flist *l);

      struct mpatch_flist *

      mpatch_fold(void *bins, struct mpatch_flist *(*get_next_item)(void *, ssize_t),

                  ssize_t start, ssize_t end);

      #endif

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				#ifndef _HG_MPATCH_H_
				#define _HG_MPATCH_H_

				#define MPATCH_ERR_NO_MEM -3
				#define MPATCH_ERR_CANNOT_BE_DECODED -2
				#define MPATCH_ERR_INVALID_PATCH -1

				struct mpatch_frag {
				int start, end, len;
				const char *data;
				};

				struct mpatch_flist {
				struct mpatch_frag base, head, *tail;
				};

				int mpatch_decode(const char bin, ssize_t len, struct mpatch_flist *res);
				ssize_t mpatch_calcsize(ssize_t len, struct mpatch_flist *l);
				void mpatch_lfree(struct mpatch_flist *a);
				int mpatch_apply(char buf, const char orig, ssize_t len,
				struct mpatch_flist *l);
				struct mpatch_flist *
				mpatch_fold(void bins, struct mpatch_flist (get_next_item)(void , ssize_t),
				ssize_t start, ssize_t end);

				#endif