int main(int argc, char* argv[]) {
fprintf(stderr, "\n\nTesting two puts, a get, a del and two gets\n\n");
hd_t hd;
hdt_t key1 = hdt_string(0, "foo"), value1 = hdt_string(0, "bar");
hdt_t key2 = hdt_string(0, "pun"), value2 = hdt_string(0, "ach");
char mem[100];
hdt_t rvalue = { mem, 100 };
memset(area, 0, MEMSIZE);
hd_init_mem(&hd, 0, (void*)area, MEMSIZE);
CHECK(hd_put(&hd, &key1, &value1, 0));
CHECK(hd_put(&hd, &key2, &value2, 0));
hd_debug(&hd);
debug_mem(area, 512);
CHECK(hd_get(&hd, &key1, &rvalue));
fprintf(stderr, "Received '%-.*s'\n", rvalue.size, (char*)(rvalue.data));
CHECK(hd_del(&hd, &key1, &rvalue));
hd_debug(&hd);
debug_mem(area, 512);
if (hd_get(&hd, &key1, &rvalue) != HDERR_NOTFOUND) {
return ~0;
}
CHECK(hd_get(&hd, &key2, &rvalue));
fprintf(stderr, "Received '%-.*s'\n", rvalue.size, (char*)(rvalue.data));
return 0;
}
int main(int argc, char* argv[]) {
fprintf(stderr, "\n\nTesting rehash\n\n");
hd_t hd;
hdt_t key, value;
memset(area, 0, MEMSIZE);
hd_init_mem(&hd, 0, (void*)area, MEMSIZE);
int i=0;
for (; i<30; i++) {
char keymem[3], valmem[3];
keymem[0] = alphabet[i % 7];
keymem[1] = alphabet[i % 13];
keymem[2] = alphabet[i % 23];
valmem[0] = alphabet[25 - (i % 7)];
valmem[1] = alphabet[25 - (i % 13)];
valmem[2] = alphabet[25 - (i % 23)];
key = (hdt_t) {
keymem, 3
};
value = (hdt_t) {
valmem, 3
};
fprintf(stderr, "\nPutting %-.*s -> %-.*s\n", 3, keymem, 3, valmem);
CHECK(hd_put(&hd, &key, &value, 0));
hd_debug(&hd);
}
hd_debug(&hd);
debug_mem(area, 1024);
return 0;
}
// bad implementation, without quite important error-checking,
// may not work in real-world hard drive
int disk_read(const disk_t *disk, uint32 logic_sector, unsigned char *buf)
{
if ( buf == NULL )
return -1;
struct hd_chs_struct chs = { 0, 0, 0 };
chs.cylinder = cylinder_from_lba(logic_sector, &disk->disk_cap);
chs.head = head_from_lba(logic_sector, &disk->disk_cap);
chs.sect = sector_from_lba(logic_sector, &disk->disk_cap);
hd_debug( "chs(c %d, h %d, s %d)\n", chs.cylinder, chs.head, chs.sect );
byte status = inb( HD_PORT_STATUS );
// hd_debug( "drive status: %x\n", status );
#if 0 /* only VMWare can pass this test, so comment it out */
while ( !(status & HD_STATUS_DRIVE_READY) ) {
hd_debug( "drive is not ready\n" );
delay(1);
status = inb( HD_PORT_STATUS );
hd_debug( "drive status: %x\n", status );
}
#endif
while ( (status & HD_STATUS_BUSY) ) {
delay(1);
hd_debug( "drive is busy\n" );
}
// select drive 0 / head
outb( 0b10100000 | (chs.head & 0x0f), HD_PORT_DRV_HEAD );
outb( 1, HD_PORT_SECT_COUNT );
outb( chs.sect, HD_PORT_SECT_NUM );
outb( chs.cylinder, HD_PORT_CYL_LOW );
outb( chs.cylinder >> 8, HD_PORT_CYL_HIGH );
outb( READ_WITH_RETRY, HD_PORT_COMMAND );
// cause we choose drive above, which requires a little time
inb( HD_PORT_STATUS );
inb( HD_PORT_STATUS );
inb( HD_PORT_STATUS );
inb( HD_PORT_STATUS );
status = inb( HD_PORT_STATUS );
if ( status & HD_STATUS_ERROR ) {
early_kprint( PL_ERROR, "read error\n" );
return -HD_STATUS_ERROR;
}
if ( status & HD_STATUS_DRQ ) {
__asm__ __volatile__ (
"pushl %%es \n\t"
"movl %%ds, %%eax \n\t"
"movl %%eax, %%es \n\t"
"cld \n\t"
"rep insl \n\t"
"popl %%es \n\t"
::"d"(HD_PORT_DATA), "D"(buf), "c"(512>>2)
: "eax"
);
} else {
