#include "cache.h"

void write_or_die(int fd, const void *buf, size_t count)
{
        const char *p = buf;
        ssize_t written;

        while (count > 0) {
                written = xwrite(fd, p, count);
                if (written == 0)
                        die("disk full?");
                else if (written < 0) {
                        if (errno == EPIPE)
                                exit(0);
                        die("write error (%s)", strerror(errno));
                }
                count -= written;
                p += written;
        }
}

int write_or_whine(int fd, const void *buf, size_t count, const char *msg)
{
        const char *p = buf;
        ssize_t written;

        while (count > 0) {
                written = xwrite(fd, p, count);
                if (written == 0) {
                        fprintf(stderr, "%s: disk full?\n", msg);
                        return 0;
                }
                else if (written < 0) {
                        if (errno == EPIPE)
                                exit(0);
                        fprintf(stderr, "%s: write error (%s)\n",
                                msg, strerror(errno));
                        return 0;
                }
                count -= written;
                p += written;
        }

        return 1;
}