basebackup_lz4.c File Reference

#include "postgres.h"
#include "backup/basebackup_sink.h"

Include dependency graph for basebackup_lz4.c:

Go to the source code of this file.

Functions
bbsink *	bbsink_lz4_new (bbsink *next, pg_compress_specification *compress)

Function Documentation

bbsink_lz4_new()

bbsink * bbsink_lz4_new	(	bbsink *	next,
		pg_compress_specification *	compress
	)

Definition at line 62 of file basebackup_lz4.c.

{
#ifndef USE_LZ4
    ereport(ERROR,
            (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
             errmsg("lz4 compression is not supported by this build")));
    return NULL;                /* keep compiler quiet */
#else
    bbsink_lz4 *sink;
    int         compresslevel;
 
    Assert(next != NULL);
 
    compresslevel = compress->level;
    Assert(compresslevel >= 0 && compresslevel <= 12);
 
    sink = palloc0(sizeof(bbsink_lz4));
    *((const bbsink_ops **) &sink->base.bbs_ops) = &bbsink_lz4_ops;
    sink->base.bbs_next = next;
    sink->compresslevel = compresslevel;
 
    return &sink->base;
#endif
}

References Assert(), compresslevel, ereport, errcode(), errmsg(), ERROR, pg_compress_specification::level, next, and palloc0().

Referenced by SendBaseBackup().