203 lines
8.7 KiB
C++
203 lines
8.7 KiB
C++
#include <string.h>
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#include "osd_rmw.cpp"
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#include "test_pattern.h"
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/***
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Cases:
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1. split(offset=128K-4K, len=8K)
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= [ [ 128K-4K, 128K ], [ 0, 4K ], [ 0, 0 ] ]
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2. read(offset=128K-4K, len=8K, osd_set=[1,0,3])
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= { read: [ [ 0, 128K ], [ 0, 4K ], [ 0, 4K ] ] }
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3. cover_read(0, 128K, { req: [ 128K-4K, 4K ] })
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= { read: [ 0, 128K-4K ] }
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4. write(offset=128K-4K, len=8K, osd_set=[1,0,3])
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= {
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read: [ [ 0, 128K ], [ 4K, 128K ], [ 4K, 128K ] ],
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write: [ [ 128K-4K, 128K ], [ 0, 4K ], [ 0, 128K ] ],
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input buffer: [ write0, write1 ],
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rmw buffer: [ write2, read0, read1, read2 ],
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}
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+ check write2 buffer
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5. write(offset=0, len=128K+64K, osd_set=[1,0,3])
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= {
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req: [ [ 0, 128K ], [ 0, 64K ], [ 0, 0 ] ],
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read: [ [ 64K, 128K ], [ 64K, 128K ], [ 64K, 128K ] ],
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write: [ [ 0, 128K ], [ 0, 64K ], [ 0, 128K ] ],
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input buffer: [ write0, write1 ],
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rmw buffer: [ write2, read0, read1, read2 ],
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}
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6. write(offset=0, len=128K+64K, osd_set=[1,2,3])
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= {
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req: [ [ 0, 128K ], [ 0, 64K ], [ 0, 0 ] ],
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read: [ [ 0, 0 ], [ 64K, 128K ], [ 0, 0 ] ],
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write: [ [ 0, 128K ], [ 0, 64K ], [ 0, 128K ] ],
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input buffer: [ write0, write1 ],
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rmw buffer: [ write2, read1 ],
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}
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7. calc_rmw(offset=128K-4K, len=8K, osd_set=[1,0,3], write_set=[1,2,3])
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= {
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read: [ [ 0, 128K ], [ 0, 128K ], [ 0, 128K ] ],
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write: [ [ 128K-4K, 128K ], [ 0, 4K ], [ 0, 128K ] ],
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input buffer: [ write0, write1 ],
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rmw buffer: [ write2, read0, read1, read2 ],
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}
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then, after calc_rmw_parity(): {
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write: [ [ 128K-4K, 128K ], [ 0, 128K ], [ 0, 128K ] ],
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write1==read1,
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}
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+ check write1 buffer
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+ check write2 buffer
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***/
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void test7();
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int main(int narg, char *args[])
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{
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osd_num_t osd_set[3] = { 1, 0, 3 };
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osd_rmw_stripe_t stripes[3] = { 0 };
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// Test 1
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split_stripes(2, 128*1024, 128*1024-4096, 8192, stripes);
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assert(stripes[0].req_start == 128*1024-4096 && stripes[0].req_end == 128*1024);
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assert(stripes[1].req_start == 0 && stripes[1].req_end == 4096);
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assert(stripes[2].req_end == 0);
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// Test 2
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for (int i = 0; i < 3; i++)
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{
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stripes[i].read_start = stripes[i].req_start;
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stripes[i].read_end = stripes[i].req_end;
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}
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assert(extend_missing_stripes(stripes, osd_set, 2, 3) == 0);
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assert(stripes[0].read_start == 0 && stripes[0].read_end == 128*1024);
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assert(stripes[2].read_start == 0 && stripes[2].read_end == 4096);
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// Test 3
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stripes[0] = { .req_start = 128*1024-4096, .req_end = 128*1024 };
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cover_read(0, 128*1024, stripes[0]);
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assert(stripes[0].read_start == 0 && stripes[0].read_end == 128*1024-4096);
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// Test 4.1
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memset(stripes, 0, sizeof(stripes));
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split_stripes(2, 128*1024, 128*1024-4096, 8192, stripes);
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void* write_buf = malloc(8192);
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void* rmw_buf = calc_rmw(write_buf, stripes, osd_set, 3, 2, 2, osd_set, 128*1024);
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assert(stripes[0].read_start == 0 && stripes[0].read_end == 128*1024);
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assert(stripes[1].read_start == 4096 && stripes[1].read_end == 128*1024);
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assert(stripes[2].read_start == 4096 && stripes[2].read_end == 128*1024);
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assert(stripes[0].write_start == 128*1024-4096 && stripes[0].write_end == 128*1024);
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assert(stripes[1].write_start == 0 && stripes[1].write_end == 4096);
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assert(stripes[2].write_start == 0 && stripes[2].write_end == 128*1024);
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assert(stripes[0].read_buf == rmw_buf+128*1024);
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assert(stripes[1].read_buf == rmw_buf+128*1024*2);
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assert(stripes[2].read_buf == rmw_buf+128*1024*3-4096);
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assert(stripes[0].write_buf == write_buf);
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assert(stripes[1].write_buf == write_buf+4096);
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assert(stripes[2].write_buf == rmw_buf);
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// Test 4.2
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set_pattern(write_buf, 8192, PATTERN0);
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set_pattern(stripes[0].read_buf, 128*1024, PATTERN1); // old data
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set_pattern(stripes[1].read_buf, 128*1024-4096, UINT64_MAX); // didn't read it, it's missing
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set_pattern(stripes[2].read_buf, 128*1024-4096, 0); // old parity = 0
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calc_rmw_parity(stripes, 3, osd_set, osd_set, 128*1024);
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check_pattern(stripes[2].write_buf, 4096, PATTERN0^PATTERN1); // new parity
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check_pattern(stripes[2].write_buf+4096, 128*1024-4096*2, 0); // new parity
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check_pattern(stripes[2].write_buf+128*1024-4096, 4096, PATTERN0^PATTERN1); // new parity
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free(rmw_buf);
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free(write_buf);
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// Test 5.1
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memset(stripes, 0, sizeof(stripes));
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split_stripes(2, 128*1024, 0, 64*1024*3, stripes);
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assert(stripes[0].req_start == 0 && stripes[0].req_end == 128*1024);
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assert(stripes[1].req_start == 0 && stripes[1].req_end == 64*1024);
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assert(stripes[2].req_end == 0);
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// Test 5.2
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write_buf = malloc(64*1024*3);
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rmw_buf = calc_rmw(write_buf, stripes, osd_set, 3, 2, 2, osd_set, 128*1024);
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assert(stripes[0].read_start == 64*1024 && stripes[0].read_end == 128*1024);
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assert(stripes[1].read_start == 64*1024 && stripes[1].read_end == 128*1024);
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assert(stripes[2].read_start == 64*1024 && stripes[2].read_end == 128*1024);
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assert(stripes[0].write_start == 0 && stripes[0].write_end == 128*1024);
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assert(stripes[1].write_start == 0 && stripes[1].write_end == 64*1024);
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assert(stripes[2].write_start == 0 && stripes[2].write_end == 128*1024);
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assert(stripes[0].read_buf == rmw_buf+128*1024);
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assert(stripes[1].read_buf == rmw_buf+64*3*1024);
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assert(stripes[2].read_buf == rmw_buf+64*4*1024);
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assert(stripes[0].write_buf == write_buf);
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assert(stripes[1].write_buf == write_buf+128*1024);
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assert(stripes[2].write_buf == rmw_buf);
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free(rmw_buf);
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free(write_buf);
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// Test 6.1
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memset(stripes, 0, sizeof(stripes));
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split_stripes(2, 128*1024, 0, 64*1024*3, stripes);
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osd_set[1] = 2;
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write_buf = malloc(64*1024*3);
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rmw_buf = calc_rmw(write_buf, stripes, osd_set, 3, 2, 3, osd_set, 128*1024);
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assert(stripes[0].read_end == 0);
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assert(stripes[1].read_start == 64*1024 && stripes[1].read_end == 128*1024);
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assert(stripes[2].read_end == 0);
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assert(stripes[0].write_start == 0 && stripes[0].write_end == 128*1024);
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assert(stripes[1].write_start == 0 && stripes[1].write_end == 64*1024);
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assert(stripes[2].write_start == 0 && stripes[2].write_end == 128*1024);
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assert(stripes[0].read_buf == 0);
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assert(stripes[1].read_buf == rmw_buf+128*1024);
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assert(stripes[2].read_buf == 0);
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assert(stripes[0].write_buf == write_buf);
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assert(stripes[1].write_buf == write_buf+128*1024);
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assert(stripes[2].write_buf == rmw_buf);
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free(rmw_buf);
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free(write_buf);
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osd_set[1] = 0;
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// Test 7
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test7();
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// End
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printf("all ok\n");
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return 0;
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}
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void test7()
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{
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osd_num_t osd_set[3] = { 1, 0, 3 };
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osd_num_t write_osd_set[3] = { 1, 2, 3 };
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osd_rmw_stripe_t stripes[3] = { 0 };
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// Test 7.1
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split_stripes(2, 128*1024, 128*1024-4096, 8192, stripes);
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void *write_buf = malloc(8192);
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void *rmw_buf = calc_rmw(write_buf, stripes, osd_set, 3, 2, 2, write_osd_set, 128*1024);
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assert(stripes[0].read_start == 0 && stripes[0].read_end == 128*1024);
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assert(stripes[1].read_start == 0 && stripes[1].read_end == 128*1024);
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assert(stripes[2].read_start == 0 && stripes[2].read_end == 128*1024);
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assert(stripes[0].write_start == 128*1024-4096 && stripes[0].write_end == 128*1024);
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assert(stripes[1].write_start == 0 && stripes[1].write_end == 4096);
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assert(stripes[2].write_start == 0 && stripes[2].write_end == 128*1024);
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assert(stripes[0].read_buf == rmw_buf+128*1024);
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assert(stripes[1].read_buf == rmw_buf+128*1024*2);
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assert(stripes[2].read_buf == rmw_buf+128*1024*3);
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assert(stripes[0].write_buf == write_buf);
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assert(stripes[1].write_buf == write_buf+4096);
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assert(stripes[2].write_buf == rmw_buf);
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// Test 7.2
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set_pattern(write_buf, 8192, PATTERN0);
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set_pattern(stripes[0].read_buf, 128*1024, PATTERN1); // old data
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set_pattern(stripes[1].read_buf, 128*1024, UINT64_MAX); // didn't read it, it's missing
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set_pattern(stripes[2].read_buf, 128*1024, 0); // old parity = 0
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calc_rmw_parity(stripes, 3, osd_set, write_osd_set, 128*1024);
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assert(stripes[0].write_start == 128*1024-4096 && stripes[0].write_end == 128*1024);
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assert(stripes[1].write_start == 0 && stripes[1].write_end == 128*1024);
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assert(stripes[2].write_start == 0 && stripes[2].write_end == 128*1024);
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assert(stripes[1].write_buf == stripes[1].read_buf);
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check_pattern(stripes[1].write_buf, 4096, PATTERN0);
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check_pattern(stripes[1].write_buf+4096, 128*1024-4096, PATTERN1);
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check_pattern(stripes[2].write_buf, 4096, PATTERN0^PATTERN1); // new parity
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check_pattern(stripes[2].write_buf+4096, 128*1024-4096*2, 0); // new parity
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check_pattern(stripes[2].write_buf+128*1024-4096, 4096, PATTERN0^PATTERN1); // new parity
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free(rmw_buf);
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free(write_buf);
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}
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