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54 lines
1.8 KiB
Raku
54 lines
1.8 KiB
Raku
/* 10.t - uses testdir.enospc/rwfile
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- Check results on out-of-space and out-of-quota. (10.t)
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- write that fills filesystem but does not go over should succeed
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- write that fills filesystem and goes over should be partial
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- write to full filesystem should return -ENOSPC
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- read beyond end of file after ENOSPC should return 0
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*/
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#include "aio_setup.h"
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#include <sys/time.h>
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#include <sys/resource.h>
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#include <unistd.h>
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int test_main(void)
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{
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/* Note: changing either of these requires updating the ext2-enospc.img
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* filesystem image. Also, if SIZE is less than PAGE_SIZE, problems
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* crop up due to ext2's preallocation.
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*/
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#define LIMIT 65536
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#define SIZE 65536
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char *buf;
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int rwfd;
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int status = 0, res;
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rwfd = open("testdir.enospc/rwfile", O_RDWR|O_CREAT|O_TRUNC, 0600);
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assert(rwfd != -1);
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res = ftruncate(rwfd, 0); assert(res == 0);
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buf = malloc(SIZE); assert(buf != NULL);
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memset(buf, 0, SIZE);
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status |= attempt_rw(rwfd, buf, SIZE, LIMIT-SIZE, WRITE, SIZE);
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status |= attempt_rw(rwfd, buf, SIZE, LIMIT-SIZE, READ, SIZE);
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status |= attempt_rw(rwfd, buf, SIZE, LIMIT, WRITE, -ENOSPC);
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status |= attempt_rw(rwfd, buf, SIZE, LIMIT, READ, 0);
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res = ftruncate(rwfd, 0); assert(res == 0);
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status |= attempt_rw(rwfd, buf, SIZE, 1+LIMIT-SIZE, WRITE, SIZE-1);
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status |= attempt_rw(rwfd, buf, SIZE, 1+LIMIT-SIZE, READ, SIZE-1);
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status |= attempt_rw(rwfd, buf, SIZE, LIMIT, READ, 0);
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status |= attempt_rw(rwfd, buf, SIZE, LIMIT, WRITE, -ENOSPC);
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status |= attempt_rw(rwfd, buf, SIZE, LIMIT, READ, 0);
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status |= attempt_rw(rwfd, buf, 0, LIMIT, WRITE, 0);
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res = close(rwfd); assert(res == 0);
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res = unlink("testdir.enospc/rwfile"); assert(res == 0);
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return status;
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}
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