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In the showwal command-line tool, for unix builds, if the

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auxiliary argument is of
the form "Ntruncate" where "N" is a frame number, then truncate the WAL
file after the N-th frame.

FossilOrigin-Name: 90015df30655d884ecf7ae61e588824696954252dc6b1a5f78cf2de8cb236104
This commit is contained in:
drh
2017-04-16 22:41:49 +00:00
parent b65b3e429a
commit b6d5a43b8a
3 changed files with 16 additions and 7 deletions
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9
tool/showwal.c
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@ -12,6 +12,7 @@
#if !defined(_MSC_VER)
#include <unistd.h>
#include <sys/types.h>
#else
#include <io.h>
#endif
@ -579,6 +580,14 @@ int main(int argc, char **argv){
decode_btree_page(a, iStart, hdrSize, zLeft+1);
free(a);
continue;
#if !defined(_MSC_VER)
}else if( zLeft && strcmp(zLeft,"truncate")==0 ){
/* Frame number followed by "truncate" truncates the WAL file
** after that frame */
off_t newSize = 32 + iStart*(pagesize+24);
truncate(argv[1], newSize);
continue;
#endif
}else{
iEnd = iStart;
}