1990/0227/port/fcall.c (diff list | history)

port/fcall.c on 1990/0227
1990/0227		#include <u.h> #include "lib.h" #include "fcall.h" #define CHAR(x) *p++ = f->x #define SHORT(x) p[0] = f->x; p[1] = f->x>>8; p += 2 #define LONG(x) p[0] = f->x; p[1] = f->x>>8; p[2] = f->x>>16; p[3] = f->x>>24; p += 4 #define VLONG(x) p[0] = f->x; p[1] = f->x>>8; p[2] = f->x>>16; p[3] = f->x>>24;\ p[4] = 0; p[5] = 0; p[6] = 0; p[7] = 0; p += 8 #define STRING(x,n) memcpy(p, f->x, n); p += n int convS2M(Fcall *f, char *ap) { uchar *p; p = (uchar*)ap; CHAR(type); switch(f->type) { default: print("bad type: %d\n", f->type); return 0; case Tnop: case Rnop: break; case Tsession: CHAR(lang); break; case Tattach: SHORT(fid); STRING(uname, sizeof(f->uname)); STRING(aname, sizeof(f->aname)); break; case Tclone: SHORT(fid); SHORT(newfid); break; case Twalk: case Tremove: SHORT(fid); STRING(name, sizeof(f->name)); break; case Topen: SHORT(fid); CHAR(mode); break; case Tcreate: SHORT(fid); STRING(name, sizeof(f->name)); LONG(perm); CHAR(mode); break; case Toread: case Tread: SHORT(fid); VLONG(offset); SHORT(count); break; case Towrite: SHORT(fid); VLONG(offset); SHORT(count); STRING(data, f->count); break; case Twrite: SHORT(fid); VLONG(offset); SHORT(count); p++; STRING(data, f->count); break; case Tclunk: case Tstat: SHORT(fid); break; case Twstat: SHORT(fid); STRING(stat, sizeof(f->stat)); break; case Terrstr: SHORT(fid); SHORT(err); break; case Tuserstr: SHORT(fid); SHORT(uid); break; /* */ case Rsession: SHORT(err); break; case Rclone: case Rclunk: case Rremove: case Rwstat: SHORT(fid); SHORT(err); break; case Rwalk: case Rattach: case Ropen: case Rcreate: SHORT(fid); SHORT(err); LONG(qid); break; case Roread: SHORT(fid); SHORT(err); SHORT(count); STRING(data, f->count); break; case Rread: SHORT(fid); SHORT(err); SHORT(count); p++; STRING(data, f->count); break; case Rowrite: case Rwrite: SHORT(fid); SHORT(err); SHORT(count); break; case Rstat: SHORT(fid); SHORT(err); STRING(stat, sizeof(f->stat)); break; case Rerrstr: SHORT(fid); SHORT(err); STRING(ename, sizeof(f->ename)); break; case Ruserstr: SHORT(fid); SHORT(err); STRING(uname, sizeof(f->uname)); break; } return p - (uchar*)ap; } int convD2M(Dir *f, char *ap) { uchar *p; p = (uchar*)ap; STRING(name, sizeof(f->name)); LONG(qid); p += 4; LONG(mode); LONG(atime); LONG(mtime); VLONG(length); SHORT(uid); SHORT(gid); SHORT(type); SHORT(dev); return p - (uchar*)ap; } #undef CHAR #undef SHORT #undef LONG #undef VLONG #undef STRING #define CHAR(x) f->x = *p++ #define SHORT(x) f->x = (p[0] | (p[1]<<8)); p += 2 #define LONG(x) f->x = (p[0] | (p[1]<<8) |\ (p[2]<<16) | (p[3]<<24)); p += 4 #define VLONG(x) f->x = (p[0] | (p[1]<<8) |\ (p[2]<<16) | (p[3]<<24)); p += 8 #define STRING(x,n) memcpy(f->x, p, n); p += n int convM2S(char *ap, Fcall *f, int n) { uchar *p; p = (uchar*)ap; CHAR(type); switch(f->type) { default: print("bad type: %d\n", f->type); return 0; case Tnop: case Rnop: break; case Tsession: CHAR(lang); break; case Tattach: SHORT(fid); STRING(uname, sizeof(f->uname)); STRING(aname, sizeof(f->aname)); break; case Tclone: SHORT(fid); SHORT(newfid); break; case Twalk: case Tremove: SHORT(fid); STRING(name, sizeof(f->name)); break; case Topen: SHORT(fid); CHAR(mode); break; case Tcreate: SHORT(fid); STRING(name, sizeof(f->name)); LONG(perm); CHAR(mode); break; case Toread: case Tread: SHORT(fid); VLONG(offset); SHORT(count); break; case Towrite: SHORT(fid); VLONG(offset); SHORT(count); f->data = (char*)p; p += f->count; break; case Twrite: SHORT(fid); VLONG(offset); SHORT(count); p++; f->data = (char*)p; p += f->count; break; case Tclunk: case Tstat: SHORT(fid); break; case Twstat: SHORT(fid); STRING(stat, sizeof(f->stat)); break; case Terrstr: SHORT(fid); SHORT(err); break; case Tuserstr: SHORT(fid); SHORT(uid); break; case Rsession: SHORT(err); break; case Rclone: case Rclunk: case Rremove: case Rwstat: SHORT(fid); SHORT(err); break; case Rwalk: case Rattach: case Ropen: case Rcreate: SHORT(fid); SHORT(err); LONG(qid); break; case Roread: SHORT(fid); SHORT(err); SHORT(count); f->data = (char*)p; p += f->count; break; case Rread: SHORT(fid); SHORT(err); SHORT(count); p++; f->data = (char*)p; p += f->count; break; case Rowrite: case Rwrite: SHORT(fid); SHORT(err); SHORT(count); break; case Rstat: SHORT(fid); SHORT(err); STRING(stat, sizeof(f->stat)); break; case Rerrstr: SHORT(fid); SHORT(err); STRING(ename, sizeof(f->ename)); break; case Ruserstr: SHORT(fid); SHORT(err); STRING(uname, sizeof(f->uname)); break; } if((uchar*)ap+n == p) return n; return 0; } int convM2D(char *ap, Dir *f) { uchar *p; p = (uchar*)ap; STRING(name, sizeof(f->name)); LONG(qid); p += 4; LONG(mode); LONG(atime); LONG(mtime); VLONG(length); SHORT(uid); SHORT(gid); SHORT(type); SHORT(dev); return p - (uchar*)ap; }