#include <u.h>#include <libc.h>#include <gio.h> int topen(ReadWriter*);int tclose(ReadWriter*);long tread(ReadWriter*, void*, long, vlong);long twrite(ReadWriter*, void*, long, vlong); ReadWriter tester = { .open = topen, .close = tclose, .pread = tread, .pwrite = twrite,}; voidmain(int argc, char *argv[]){ int gfd = gopen(&tester, nil); if(gfd < 0){ print("gio_test: failed to open gio fd\n"); exits("failure"); } char *test1 = "Hello World!\n"; char test2[256]; gread(gfd, &test2, 256, 23); gwrite(gfd, test1, sizeof(test1), 8); print("gio_test: %s\n", test2); gclose(gfd); print("gio_test: passed\n"); exits(nil);} inttopen(ReadWriter *rd){ print("gio_test: topen: file opened!\n"); return 0;} inttclose(ReadWriter *rd){ print("gio_test: tclose: file closed!\n"); return 0;} longtread(ReadWriter *rd, void *bf, long len, vlong offset){ char *test = "this is a read string!"; memcpy(bf, test, strlen(test)+1); print("gio_test: tread: len = %ud, offset = %ud\n", len, offset); return len;} longtwrite(ReadWriter *rd, void *bf, long len, vlong offset){ print("gio_test: twrite: written string: %s\n", bf); print("gio_test: twrite: len = %ud, offset = %ud\n", len, offset); return len;}
#include <u.h>
#include <libc.h>
#include <gio.h>
int topen(ReadWriter*);
int tclose(ReadWriter*);
long tread(ReadWriter*, void*, long, vlong);
long twrite(ReadWriter*, void*, long, vlong);
ReadWriter tester = {
.open = topen,
.close = tclose,
.pread = tread,
.pwrite = twrite,
};
void
main(int argc, char *argv[])
{
int gfd = gopen(&tester, nil);
if(gfd < 0){
print("gio_test: failed to open gio fd\n");
exits("failure");
}
char *test1 = "Hello World!\n";
char test2[256];
gread(gfd, &test2, 256, 23);
gwrite(gfd, test1, sizeof(test1), 8);
print("gio_test: %s\n", test2);
gclose(gfd);
print("gio_test: passed\n");
exits(nil);
}
int
topen(ReadWriter *rd)
{
print("gio_test: topen: file opened!\n");
return 0;
}
int
tclose(ReadWriter *rd)
{
print("gio_test: tclose: file closed!\n");
return 0;
}
long
tread(ReadWriter *rd, void *bf, long len, vlong offset)
{
char *test = "this is a read string!";
memcpy(bf, test, strlen(test)+1);
print("gio_test: tread: len = %ud, offset = %ud\n", len, offset);
return len;
}
long
twrite(ReadWriter *rd, void *bf, long len, vlong offset)
{
print("gio_test: twrite: written string: %s\n", bf);
print("gio_test: twrite: len = %ud, offset = %ud\n", len, offset);
return len;
}