ref: 733c5d6645b133b60d304c38fcb1398f94d0618c
dir: /sys/src/cmd/hgfs/info.c/
#include <u.h> #include <libc.h> #include <thread.h> #include <bio.h> #include "dat.h" #include "fns.h" Revinfo* loadrevinfo(Revlog *changelog, int rev) { int c, fd; char *line; Revinfo *ri; vlong off; Biobuf *buf; if((fd = revlogopentemp(changelog, rev)) < 0) return nil; off = fmetaheader(fd); seek(fd, off, 0); ri = malloc(sizeof(*ri)); memset(ri, 0, sizeof(*ri)); ri->logoff = off; memmove(ri->chash, changelog->map[rev].hash, HASHSZ); buf = Bfdopen(fd, OREAD); line = Brdstr(buf, '\n', 1); if(line == nil) goto Error; hex2hash(line, ri->mhash); free(line); line = Brdstr(buf, '\n', 1); if(line == nil) goto Error; ri->who = line; line = Brdstr(buf, '\n', 1); if(line == nil) goto Error; ri->when = strtol(line, nil, 10); free(line); ri->logoff = Boffset(buf); for(;;){ if((c = Bgetc(buf)) < 0) goto Error; if(c == '\n') break; do { if((c = Bgetc(buf)) < 0) goto Error; } while(c != '\n'); } ri->loglen = Boffset(buf) - ri->logoff - 1; line = Brdstr(buf, '\0', 1); if(line == nil) goto Error; ri->why = line; Bterm(buf); close(fd); return ri; Error: Bterm(buf); close(fd); free(ri->who); free(ri->why); free(ri); return nil; }