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40ed4990 RB |
1 | #include "clar_libgit2.h" |
2 | #include "thread-utils.h" | |
3 | ||
8a2834d3 RB |
4 | static git_repository *_repo; |
5 | static git_tree *_a, *_b; | |
6 | static git_atomic _counts[4]; | |
7 | static int _check_counts; | |
40ed4990 RB |
8 | |
9 | void test_threads_diff__cleanup(void) | |
10 | { | |
11 | cl_git_sandbox_cleanup(); | |
12 | } | |
13 | ||
14 | static void run_in_parallel( | |
15 | int repeats, int threads, void *(*func)(void *), | |
16 | void (*before_test)(void), void (*after_test)(void)) | |
17 | { | |
18 | int r, t, *id = git__calloc(threads, sizeof(int)); | |
19 | #ifdef GIT_THREADS | |
20 | git_thread *th = git__calloc(threads, sizeof(git_thread)); | |
3816debc | 21 | cl_assert(th != NULL); |
40ed4990 RB |
22 | #else |
23 | void *th = NULL; | |
24 | #endif | |
25 | ||
3816debc | 26 | cl_assert(id != NULL); |
40ed4990 RB |
27 | |
28 | for (r = 0; r < repeats; ++r) { | |
8a2834d3 | 29 | _repo = cl_git_sandbox_reopen(); /* reopen sandbox to flush caches */ |
40ed4990 RB |
30 | |
31 | if (before_test) before_test(); | |
32 | ||
33 | for (t = 0; t < threads; ++t) { | |
34 | id[t] = t; | |
35 | #ifdef GIT_THREADS | |
36 | cl_git_pass(git_thread_create(&th[t], NULL, func, &id[t])); | |
37 | #else | |
38 | cl_assert(func(&id[t]) == &id[t]); | |
39 | #endif | |
40 | } | |
41 | ||
42 | #ifdef GIT_THREADS | |
43 | for (t = 0; t < threads; ++t) | |
44 | cl_git_pass(git_thread_join(th[t], NULL)); | |
45 | memset(th, 0, threads * sizeof(git_thread)); | |
46 | #endif | |
47 | ||
48 | if (after_test) after_test(); | |
49 | } | |
50 | ||
51 | git__free(id); | |
52 | git__free(th); | |
53 | } | |
54 | ||
55 | static void setup_trees(void) | |
56 | { | |
57 | cl_git_pass(git_revparse_single( | |
8a2834d3 | 58 | (git_object **)&_a, _repo, "0017bd4ab1^{tree}")); |
40ed4990 | 59 | cl_git_pass(git_revparse_single( |
8a2834d3 | 60 | (git_object **)&_b, _repo, "26a125ee1b^{tree}")); |
40ed4990 | 61 | |
8a2834d3 | 62 | memset(_counts, 0, sizeof(_counts)); |
40ed4990 RB |
63 | } |
64 | ||
65 | #define THREADS 20 | |
66 | ||
67 | static void free_trees(void) | |
68 | { | |
8a2834d3 RB |
69 | git_tree_free(_a); _a = NULL; |
70 | git_tree_free(_b); _b = NULL; | |
71 | ||
72 | if (_check_counts) { | |
73 | cl_assert_equal_i(288, git_atomic_get(&_counts[0])); | |
74 | cl_assert_equal_i(112, git_atomic_get(&_counts[1])); | |
75 | cl_assert_equal_i( 80, git_atomic_get(&_counts[2])); | |
76 | cl_assert_equal_i( 96, git_atomic_get(&_counts[3])); | |
77 | } | |
40ed4990 RB |
78 | } |
79 | ||
80 | static void *run_index_diffs(void *arg) | |
81 | { | |
82 | int thread = *(int *)arg; | |
83 | git_diff_options opts = GIT_DIFF_OPTIONS_INIT; | |
84 | git_diff *diff = NULL; | |
85 | size_t i; | |
86 | int exp[4] = { 0, 0, 0, 0 }; | |
87 | ||
40ed4990 RB |
88 | switch (thread & 0x03) { |
89 | case 0: /* diff index to workdir */; | |
8a2834d3 | 90 | cl_git_pass(git_diff_index_to_workdir(&diff, _repo, NULL, &opts)); |
40ed4990 RB |
91 | break; |
92 | case 1: /* diff tree 'a' to index */; | |
8a2834d3 | 93 | cl_git_pass(git_diff_tree_to_index(&diff, _repo, _a, NULL, &opts)); |
40ed4990 RB |
94 | break; |
95 | case 2: /* diff tree 'b' to index */; | |
8a2834d3 | 96 | cl_git_pass(git_diff_tree_to_index(&diff, _repo, _b, NULL, &opts)); |
40ed4990 RB |
97 | break; |
98 | case 3: /* diff index to workdir (explicit index) */; | |
99 | { | |
100 | git_index *idx; | |
8a2834d3 RB |
101 | cl_git_pass(git_repository_index(&idx, _repo)); |
102 | cl_git_pass(git_diff_index_to_workdir(&diff, _repo, idx, &opts)); | |
40ed4990 RB |
103 | git_index_free(idx); |
104 | break; | |
105 | } | |
106 | } | |
107 | ||
40ed4990 RB |
108 | /* keep some diff stats to make sure results are as expected */ |
109 | ||
110 | i = git_diff_num_deltas(diff); | |
8a2834d3 | 111 | git_atomic_add(&_counts[0], (int32_t)i); |
40ed4990 RB |
112 | exp[0] = (int)i; |
113 | ||
114 | while (i > 0) { | |
115 | switch (git_diff_get_delta(diff, --i)->status) { | |
8a2834d3 RB |
116 | case GIT_DELTA_MODIFIED: exp[1]++; git_atomic_inc(&_counts[1]); break; |
117 | case GIT_DELTA_ADDED: exp[2]++; git_atomic_inc(&_counts[2]); break; | |
118 | case GIT_DELTA_DELETED: exp[3]++; git_atomic_inc(&_counts[3]); break; | |
40ed4990 RB |
119 | default: break; |
120 | } | |
121 | } | |
122 | ||
40ed4990 RB |
123 | switch (thread & 0x03) { |
124 | case 0: case 3: | |
125 | cl_assert_equal_i(8, exp[0]); cl_assert_equal_i(4, exp[1]); | |
126 | cl_assert_equal_i(0, exp[2]); cl_assert_equal_i(4, exp[3]); | |
127 | break; | |
128 | case 1: | |
129 | cl_assert_equal_i(12, exp[0]); cl_assert_equal_i(3, exp[1]); | |
130 | cl_assert_equal_i(7, exp[2]); cl_assert_equal_i(2, exp[3]); | |
131 | break; | |
132 | case 2: | |
133 | cl_assert_equal_i(8, exp[0]); cl_assert_equal_i(3, exp[1]); | |
134 | cl_assert_equal_i(3, exp[2]); cl_assert_equal_i(2, exp[3]); | |
135 | break; | |
136 | } | |
137 | ||
138 | git_diff_free(diff); | |
139 | ||
140 | return arg; | |
141 | } | |
142 | ||
143 | void test_threads_diff__concurrent_diffs(void) | |
144 | { | |
8a2834d3 RB |
145 | _repo = cl_git_sandbox_init("status"); |
146 | _check_counts = 1; | |
40ed4990 RB |
147 | |
148 | run_in_parallel( | |
149 | 20, 32, run_index_diffs, setup_trees, free_trees); | |
150 | } | |
8a2834d3 RB |
151 | |
152 | static void *run_index_diffs_with_modifier(void *arg) | |
153 | { | |
154 | int thread = *(int *)arg; | |
155 | git_diff_options opts = GIT_DIFF_OPTIONS_INIT; | |
156 | git_diff *diff = NULL; | |
157 | git_index *idx = NULL; | |
158 | ||
159 | cl_git_pass(git_repository_index(&idx, _repo)); | |
160 | ||
161 | /* have first thread altering the index as we go */ | |
162 | if (thread == 0) { | |
163 | int i; | |
164 | ||
165 | for (i = 0; i < 300; ++i) { | |
166 | switch (i & 0x03) { | |
167 | case 0: (void)git_index_add_bypath(idx, "new_file"); break; | |
168 | case 1: (void)git_index_remove_bypath(idx, "modified_file"); break; | |
169 | case 2: (void)git_index_remove_bypath(idx, "new_file"); break; | |
170 | case 3: (void)git_index_add_bypath(idx, "modified_file"); break; | |
171 | } | |
172 | git_thread_yield(); | |
173 | } | |
174 | ||
175 | git_index_free(idx); | |
176 | return arg; | |
177 | } | |
178 | ||
179 | /* only use explicit index in this test to prevent reloading */ | |
180 | ||
181 | switch (thread & 0x03) { | |
182 | case 0: /* diff index to workdir */; | |
183 | cl_git_pass(git_diff_index_to_workdir(&diff, _repo, idx, &opts)); | |
184 | break; | |
185 | case 1: /* diff tree 'a' to index */; | |
186 | cl_git_pass(git_diff_tree_to_index(&diff, _repo, _a, idx, &opts)); | |
187 | break; | |
188 | case 2: /* diff tree 'b' to index */; | |
189 | cl_git_pass(git_diff_tree_to_index(&diff, _repo, _b, idx, &opts)); | |
190 | break; | |
191 | case 3: /* diff index to workdir reversed */; | |
192 | opts.flags |= GIT_DIFF_REVERSE; | |
193 | cl_git_pass(git_diff_index_to_workdir(&diff, _repo, idx, &opts)); | |
194 | break; | |
195 | } | |
196 | ||
197 | /* results will be unpredictable with index modifier thread running */ | |
198 | ||
199 | git_diff_free(diff); | |
200 | git_index_free(idx); | |
201 | ||
202 | return arg; | |
203 | } | |
204 | ||
205 | void test_threads_diff__with_concurrent_index_modified(void) | |
206 | { | |
207 | _repo = cl_git_sandbox_init("status"); | |
208 | _check_counts = 0; | |
209 | ||
210 | run_in_parallel( | |
211 | 20, 32, run_index_diffs_with_modifier, setup_trees, free_trees); | |
212 | } |