33 lines
1.3 KiB
C
33 lines
1.3 KiB
C
typedef unsigned int u_int8_t __attribute__ ((__mode__ (__QI__)));
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typedef unsigned int u_int32_t __attribute__ ((__mode__ (__SI__)));
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typedef enum { READ_SHARED = 0, WRITE_EXCLUSIVE = 1,
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READ_EXCLUSIVE = 2, EXCLUSIVE_ACCESS = 3 } scsires_access_mode;
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struct scsires_extent_elem {
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scsires_access_mode mode;
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unsigned relative_address;
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u_int32_t first_block;
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u_int32_t length;
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};
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typedef struct scsires_extent_elem scsires_extent_elem_t;
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struct scsires_extent {
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u_int8_t num_elements;
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scsires_extent_elem_t *elements;
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};
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typedef struct scsires_extent scsires_extent_t;
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unsigned char buf[512];
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void scsires_issue_reservation(scsires_extent_t * new_extent)
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{
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int i;
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for (i = 0; i < new_extent->num_elements; i++)
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{
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buf[(i * 8)] = new_extent->elements[i].mode;
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buf[(i * 8) + 1] = ((new_extent->elements[i].length >> 16) & 0xff);
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buf[(i * 8) + 2] = ((new_extent->elements[i].length >> 8) & 0xff);
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buf[(i * 8) + 3] = (new_extent->elements[i].length & 0xff);
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buf[(i * 8) + 4] = ((new_extent->elements[i].first_block >> 24) & 0xff);
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buf[(i * 8) + 5] = ((new_extent->elements[i].first_block >> 16) & 0xff);
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buf[(i * 8) + 6] = ((new_extent->elements[i].first_block >> 8) & 0xff);
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buf[(i * 8) + 7] = (new_extent->elements[i].first_block & 0xff);
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}
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}
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