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notmuch/util/zlib-extra.h

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util: add gz_readline The idea is to provide a more or less drop in replacement for readline to read from zlib/gzip streams. Take the opportunity to replace malloc with talloc.
2014-03-29 18:53:17 +01:00
#ifndef _ZLIB_EXTRA_H
#define _ZLIB_EXTRA_H
#include "util.h"
#include <zlib.h>
util: make remaining headers includable from C++ libnotmuch_util.a is supposed to be usable from the library and the CLI, but much the library is compiled as C++. Add in appropriate wrapping to prevent symbol mangling. These wrappers already existed in string-util.h; it seems better to be consistent.
2019-03-02 21:26:06 +01:00
#ifdef __cplusplus
extern "C" {
#endif
util: add gz_readline The idea is to provide a more or less drop in replacement for readline to read from zlib/gzip streams. Take the opportunity to replace malloc with talloc.
2014-03-29 18:53:17 +01:00
/* Like getline, but read from a gzFile. Allocation is with talloc.
* Returns:
*
* UTIL_SUCCESS, UTIL_OUT_OF_MEMORY, UTIL_ERRNO, UTIL_GZERROR
* Consult util.h for description
*
* UTIL_EOF End of file encountered before
* any characters read
*/
util_status_t
gz_getline (void *ctx, char **lineptr, ssize_t *bytes_read, gzFile stream);
/* return a suitable error string based on the return status
* from gz_readline
*/
const char *
gz_error_string (util_status_t status, gzFile stream);
util: make remaining headers includable from C++ libnotmuch_util.a is supposed to be usable from the library and the CLI, but much the library is compiled as C++. Add in appropriate wrapping to prevent symbol mangling. These wrappers already existed in string-util.h; it seems better to be consistent.
2019-03-02 21:26:06 +01:00
don't pass NULL as second parameter to gzerror Although (as of 1.2.11) zlib checks this parameter before writing to it, the docs don't promise to keep doing so, so be safe.
2020-04-13 01:00:31 +02:00
/* Call gzerror with a dummy errno argument, the docs don't promise to
* support the NULL case */
util/zlib-extra: de-inline gzerror_str It turns out that putting inline functions in C header files is not a good idea, and can cause linking problems if the compiler decides not to inline them. In principle this is solvable by using a "static inline" declaration, but this potentially makes a copy in every compilation unit. Since we don't actually care about the performance of this function, just use a non-inline function.
2020-04-27 14:24:22 +02:00
const char *
gzerror_str(gzFile file);
don't pass NULL as second parameter to gzerror Although (as of 1.2.11) zlib checks this parameter before writing to it, the docs don't promise to keep doing so, so be safe.
2020-04-13 01:00:31 +02:00
util: make remaining headers includable from C++ libnotmuch_util.a is supposed to be usable from the library and the CLI, but much the library is compiled as C++. Add in appropriate wrapping to prevent symbol mangling. These wrappers already existed in string-util.h; it seems better to be consistent.
2019-03-02 21:26:06 +01:00
#ifdef __cplusplus
}
#endif
util: add gz_readline The idea is to provide a more or less drop in replacement for readline to read from zlib/gzip streams. Take the opportunity to replace malloc with talloc.
2014-03-29 18:53:17 +01:00
#endif
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