diff options
Diffstat (limited to 'debian/vendor-h2o/t/00unit/lib/http2/scheduler.c')
-rw-r--r-- | debian/vendor-h2o/t/00unit/lib/http2/scheduler.c | 563 |
1 files changed, 563 insertions, 0 deletions
diff --git a/debian/vendor-h2o/t/00unit/lib/http2/scheduler.c b/debian/vendor-h2o/t/00unit/lib/http2/scheduler.c new file mode 100644 index 0000000..d643cbf --- /dev/null +++ b/debian/vendor-h2o/t/00unit/lib/http2/scheduler.c @@ -0,0 +1,563 @@ +/* + * Copyright (c) 2015 DeNA Co., Ltd. + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to + * deal in the Software without restriction, including without limitation the + * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + */ +#include <string.h> +#include "../../test.h" +#include "../../../../lib/http2/scheduler.c" + +static void test_queue(void) +{ + h2o_http2_scheduler_queue_t drr; + struct node_t { + h2o_http2_scheduler_queue_node_t super; + uint16_t weight; + size_t cnt; + } w256 = {{{NULL}}, 256}, w128 = {{{NULL}}, 128}, w32 = {{{NULL}}, 32}, w1 = {{{NULL}}, 1}; + size_t i; + + queue_init(&drr); + queue_set(&drr, &w256.super, 256); + queue_set(&drr, &w128.super, 128); + queue_set(&drr, &w32.super, 32); + queue_set(&drr, &w1.super, 1); + + for (i = 0; i != (256 + 128 + 32 + 1) * 100; ++i) { + struct node_t *popped = (struct node_t *)queue_pop(&drr); + if (popped == NULL) { + ok(0); + return; + } + ++popped->cnt; + queue_set(&drr, &popped->super, popped->weight); + } + + ok(w256.cnt == 25600); + ok(w128.cnt == 12800); + ok(w32.cnt == 3200); + ok(w1.cnt == 100); +} + +typedef struct { + h2o_http2_scheduler_openref_t ref; + const char *name; + int still_is_active; + int bail_out; +} node_t; + +static char output[1024]; +static size_t max_cnt; + +static int iterate_cb(h2o_http2_scheduler_openref_t *ref, int *still_is_active, void *_unused) +{ + node_t *node = (void *)ref; + + if (output[0] != '\0') + strcat(output, ","); + strcat(output, node->name); + *still_is_active = node->still_is_active; + + if (--max_cnt == 0) + return 1; + return node->bail_out; +} + +static void test_round_robin(void) +{ + h2o_http2_scheduler_node_t root; + node_t nodeA = {{{NULL}}, "A", 1, 0}; + node_t nodeB = {{{NULL}}, "B", 1, 0}; + node_t nodeC = {{{NULL}}, "C", 1, 0}; + + h2o_http2_scheduler_init(&root); + h2o_http2_scheduler_open(&nodeA.ref, &root, 1, 0); + h2o_http2_scheduler_open(&nodeB.ref, &root, 1, 0); + h2o_http2_scheduler_open(&nodeC.ref, &root, 1, 0); + + /* none are active */ + output[0] = '\0'; + max_cnt = 4; + h2o_http2_scheduler_run(&root, iterate_cb, NULL); + ok(strcmp(output, "") == 0); + + /* set A to active */ + h2o_http2_scheduler_activate(&nodeA.ref); + output[0] = '\0'; + max_cnt = 4; + h2o_http2_scheduler_run(&root, iterate_cb, NULL); + ok(strcmp(output, "A,A,A,A") == 0); + + /* A should change to inactive */ + nodeA.still_is_active = 0; + output[0] = '\0'; + max_cnt = 4; + h2o_http2_scheduler_run(&root, iterate_cb, NULL); + ok(strcmp(output, "A") == 0); + + /* set all to active */ + h2o_http2_scheduler_activate(&nodeA.ref); + nodeA.still_is_active = 1; + h2o_http2_scheduler_activate(&nodeB.ref); + h2o_http2_scheduler_activate(&nodeC.ref); + output[0] = '\0'; + max_cnt = 7; + h2o_http2_scheduler_run(&root, iterate_cb, NULL); + ok(strcmp(output, "A,B,C,A,B,C,A") == 0); + + /* change them to inactive */ + nodeA.still_is_active = 0; + nodeB.still_is_active = 0; + nodeC.still_is_active = 0; + output[0] = '\0'; + max_cnt = 4; + h2o_http2_scheduler_run(&root, iterate_cb, NULL); + ok(strcmp(output, "B,C,A") == 0); + + /* close C */ + h2o_http2_scheduler_close(&nodeC.ref); + h2o_http2_scheduler_activate(&nodeA.ref); + h2o_http2_scheduler_activate(&nodeB.ref); + output[0] = '\0'; + max_cnt = 4; + h2o_http2_scheduler_run(&root, iterate_cb, NULL); + ok(strcmp(output, "A,B") == 0); + + h2o_http2_scheduler_close(&nodeA.ref); + h2o_http2_scheduler_close(&nodeB.ref); + h2o_http2_scheduler_dispose(&root); +} + +static void test_priority(void) +{ + h2o_http2_scheduler_node_t root; + node_t nodeA = {{{NULL}}, "A", 1, 0}; + node_t nodeB = {{{NULL}}, "B", 1, 0}; + node_t nodeC = {{{NULL}}, "C", 1, 0}; + + h2o_http2_scheduler_init(&root); + h2o_http2_scheduler_open(&nodeA.ref, &root, 32, 0); + h2o_http2_scheduler_activate(&nodeA.ref); + h2o_http2_scheduler_open(&nodeB.ref, &root, 32, 0); + h2o_http2_scheduler_activate(&nodeB.ref); + h2o_http2_scheduler_open(&nodeC.ref, &root, 12, 0); + h2o_http2_scheduler_activate(&nodeC.ref); + + /* should only get the higher ones */ + output[0] = '\0'; + max_cnt = 20; + h2o_http2_scheduler_run(&root, iterate_cb, NULL); + ok(strcmp(output, "A,B,A,B,C,A,B,A,B,A,B,C,A,B,A,B,C,A,B,A") == 0); + + /* eventually disactivate A */ + nodeA.still_is_active = 0; + output[0] = '\0'; + max_cnt = 10; + h2o_http2_scheduler_run(&root, iterate_cb, NULL); + ok(strcmp(output, "B,A,B,C,B,B,B,C,B,B") == 0); + + /* should start serving C as B gets disactivated */ + nodeB.still_is_active = 0; + output[0] = '\0'; + max_cnt = 10; + h2o_http2_scheduler_run(&root, iterate_cb, NULL); + ok(strcmp(output, "C,B,C,C,C,C,C,C,C,C") == 0); + + h2o_http2_scheduler_close(&nodeA.ref); + h2o_http2_scheduler_close(&nodeB.ref); + h2o_http2_scheduler_close(&nodeC.ref); + h2o_http2_scheduler_dispose(&root); +} + +static void test_dependency(void) +{ + h2o_http2_scheduler_node_t root; + node_t nodeA = {{{NULL}}, "A", 1, 0}; + node_t nodeB = {{{NULL}}, "B", 1, 0}; + node_t nodeC = {{{NULL}}, "C", 1, 0}; + node_t nodeD = {{{NULL}}, "D", 1, 0}; + + /* + * root + * /|\ + * A B C + * | + * D + */ + + h2o_http2_scheduler_init(&root); + h2o_http2_scheduler_open(&nodeA.ref, &root, 32, 0); + h2o_http2_scheduler_activate(&nodeA.ref); + h2o_http2_scheduler_open(&nodeB.ref, &root, 32, 0); + h2o_http2_scheduler_activate(&nodeB.ref); + h2o_http2_scheduler_open(&nodeC.ref, &root, 12, 0); + h2o_http2_scheduler_activate(&nodeC.ref); + h2o_http2_scheduler_open(&nodeD.ref, &nodeA.ref.node, 6, 0); + h2o_http2_scheduler_activate(&nodeD.ref); + + /* should get A and B (and some C) */ + output[0] = '\0'; + max_cnt = 20; + h2o_http2_scheduler_run(&root, iterate_cb, NULL); + ok(strcmp(output, "A,B,A,B,C,A,B,A,B,A,B,C,A,B,A,B,C,A,B,A") == 0); + + /* eventually disactivate A, should get D,B (and some C) */ + nodeA.still_is_active = 0; + output[0] = '\0'; + max_cnt = 20; + h2o_http2_scheduler_run(&root, iterate_cb, NULL); + ok(strcmp(output, "B,A,B,C,D,B,D,B,D,B,C,D,B,D,B,C,D,B,D,B") == 0); + + /* eventually disactivate B, should get D only (and some C) */ + nodeB.still_is_active = 0; + output[0] = '\0'; + max_cnt = 20; + h2o_http2_scheduler_run(&root, iterate_cb, NULL); + ok(strcmp(output, "D,B,C,D,D,D,C,D,D,C,D,D,D,C,D,D,C,D,D,D") == 0); + + /* closing A raises D, and the priority becomes D = B > C */ + h2o_http2_scheduler_close(&nodeA.ref); + h2o_http2_scheduler_activate(&nodeB.ref); + nodeB.still_is_active = 1; + output[0] = '\0'; + max_cnt = 20; + h2o_http2_scheduler_run(&root, iterate_cb, NULL); + ok(strcmp(output, "D,C,B,D,B,D,B,C,D,B,D,B,D,C,B,D,B,D,B,C") == 0); + + h2o_http2_scheduler_close(&nodeB.ref); + h2o_http2_scheduler_close(&nodeC.ref); + h2o_http2_scheduler_close(&nodeD.ref); + h2o_http2_scheduler_dispose(&root); +} + +static void test_exclusive(void) +{ + h2o_http2_scheduler_node_t scheduler; + node_t nodeA = {{{NULL}}, "A", 1, 0}; + node_t nodeB = {{{NULL}}, "B", 1, 0}; + node_t nodeC = {{{NULL}}, "C", 1, 0}; + + h2o_http2_scheduler_init(&scheduler); + + /* + * root root + * /\ | + * A B => C + * |\ + * A B + */ + + /* open A & B */ + h2o_http2_scheduler_open(&nodeA.ref, &scheduler, 32, 0); + h2o_http2_scheduler_activate(&nodeA.ref); + h2o_http2_scheduler_open(&nodeB.ref, &scheduler, 32, 0); + h2o_http2_scheduler_activate(&nodeB.ref); + + output[0] = '\0'; + max_cnt = 5; + h2o_http2_scheduler_run(&scheduler, iterate_cb, NULL); + ok(strcmp(output, "A,B,A,B,A") == 0); + + /* add C as an exclusive */ + h2o_http2_scheduler_open(&nodeC.ref, &scheduler, 12, 1); + + /* should get A & B since C is inactive */ + output[0] = '\0'; + max_cnt = 5; + h2o_http2_scheduler_run(&scheduler, iterate_cb, NULL); + ok(strcmp(output, "A,B,A,B,A") == 0); /* under current impl, moving the deps causes them to be ordered using _all_ref */ + + /* should see C once it is activated */ + h2o_http2_scheduler_activate(&nodeC.ref); + output[0] = '\0'; + max_cnt = 5; + h2o_http2_scheduler_run(&scheduler, iterate_cb, NULL); + ok(strcmp(output, "C,C,C,C,C") == 0); + + /* eventually disabling C should show A and B */ + nodeC.still_is_active = 0; + output[0] = '\0'; + max_cnt = 5; + h2o_http2_scheduler_run(&scheduler, iterate_cb, NULL); + ok(strcmp(output, "C,B,A,B,A") == 0); + + h2o_http2_scheduler_close(&nodeA.ref); + h2o_http2_scheduler_close(&nodeB.ref); + h2o_http2_scheduler_close(&nodeC.ref); + h2o_http2_scheduler_dispose(&scheduler); +} + +static void test_firefox(void) +{ + /* + * firefox sends something like below + * + * PRIORITY: id:3, dependency:0, weight: 201 + * PRIORITY: id:5, dependency:0, weight: 101 + * PRIORITY: id:7, dependency:0, weight: 1 + * PRIORITY: id:9, dependency:7, weight: 1 + * PRIORITY: id:11, dependency:3, weight: 1 + * HEADERS: id:13, dependency:11, weight: 22 + * HEADERS: id:15, dependency:3, weight: 22 + * HEADERS: id:17, dependency:3, weight: 22 + */ + h2o_http2_scheduler_node_t root; + node_t g1 = {{{NULL}}, "g1", 0, 0}; + node_t g2 = {{{NULL}}, "g2", 0, 0}; + node_t g3 = {{{NULL}}, "g3", 0, 0}; + node_t g4 = {{{NULL}}, "g4", 0, 0}; + node_t g5 = {{{NULL}}, "g5", 0, 0}; + node_t r1 = {{{NULL}}, "r1", 1, 0}; + node_t r2 = {{{NULL}}, "r2", 1, 0}; + node_t r3 = {{{NULL}}, "r3", 1, 0}; + + h2o_http2_scheduler_init(&root); + + /* setup the proirity groups */ + h2o_http2_scheduler_open(&g1.ref, &root, 201, 0); + h2o_http2_scheduler_open(&g2.ref, &root, 101, 0); + h2o_http2_scheduler_open(&g3.ref, &root, 1, 0); + h2o_http2_scheduler_open(&g4.ref, &g3.ref.node, 1, 0); + h2o_http2_scheduler_open(&g5.ref, &g1.ref.node, 1, 0); + + /* open r1 and set serving */ + h2o_http2_scheduler_open(&r1.ref, &g5.ref.node, 22, 0); + h2o_http2_scheduler_activate(&r1.ref); + output[0] = '\0'; + max_cnt = 5; + h2o_http2_scheduler_run(&root, iterate_cb, NULL); + ok(strcmp(output, "r1,r1,r1,r1,r1") == 0); + + /* open r2,r3 and serve */ + h2o_http2_scheduler_open(&r2.ref, &g1.ref.node, 22, 0); + h2o_http2_scheduler_activate(&r2.ref); + h2o_http2_scheduler_open(&r3.ref, &g1.ref.node, 22, 0); + h2o_http2_scheduler_activate(&r3.ref); + output[0] = '\0'; + max_cnt = 5; + h2o_http2_scheduler_run(&root, iterate_cb, NULL); + ok(strcmp(output, "r2,r3,r2,r3,r2") == 0); + + /* eventually disactive r2,r3 */ + r2.still_is_active = 0; + r3.still_is_active = 0; + output[0] = '\0'; + max_cnt = 5; + h2o_http2_scheduler_run(&root, iterate_cb, NULL); + ok(strcmp(output, "r3,r2,r1,r1,r1") == 0); + + /* close r2,r3 */ + h2o_http2_scheduler_close(&r2.ref); + h2o_http2_scheduler_close(&r3.ref); + output[0] = '\0'; + max_cnt = 5; + h2o_http2_scheduler_run(&root, iterate_cb, NULL); + ok(strcmp(output, "r1,r1,r1,r1,r1") == 0); + + h2o_http2_scheduler_close(&r1.ref); + + h2o_http2_scheduler_close(&g1.ref); + h2o_http2_scheduler_close(&g2.ref); + h2o_http2_scheduler_close(&g3.ref); + h2o_http2_scheduler_close(&g4.ref); + h2o_http2_scheduler_close(&g5.ref); + h2o_http2_scheduler_dispose(&root); +} + +static void dump_tree(h2o_http2_scheduler_node_t *node) +{ + if (node->_parent != NULL) { + node_t *n = (void *)node; + strcat(output, n->name); + sprintf(output + strlen(output), "%u", (unsigned)h2o_http2_scheduler_get_weight(&n->ref)); + } + + if (!h2o_linklist_is_empty(&node->_all_refs)) { + unsigned weight; + int found_any = 0; + for (weight = 256; weight >= 1; --weight) { + h2o_linklist_t *link; + for (link = node->_all_refs.next; link != &node->_all_refs; link = link->next) { + h2o_http2_scheduler_openref_t *ref = H2O_STRUCT_FROM_MEMBER(h2o_http2_scheduler_openref_t, _all_link, link); + if (ref->weight == weight) { + if (!found_any) { + found_any = 1; + strcat(output, "("); + } + dump_tree(&ref->node); + } + } + } + if (found_any) + strcat(output, ")"); + } +} + +static int test_reprioritize_exclusive; + +static void test_reprioritize(void) +{ + /* from 5.3.3 of HTTP-2 draft 16 + * ? ? ? ? + * | / \ | | + * A D A D D + * / \ / / \ / \ | + * B C ==> F B C ==> F A OR A + * / \ | / \ /|\ + * D E E B C B C F + * | | | + * F E E + * (intermediate) (non-exclusive) (exclusive) + */ + h2o_http2_scheduler_node_t root; + node_t a = {{{NULL}}, "A"}; + node_t b = {{{NULL}}, "B"}; + node_t c = {{{NULL}}, "C"}; + node_t d = {{{NULL}}, "D"}; + node_t e = {{{NULL}}, "E"}; + node_t f = {{{NULL}}, "F"}; + + h2o_http2_scheduler_init(&root); + h2o_http2_scheduler_open(&a.ref, &root, 6, 0); + h2o_http2_scheduler_open(&b.ref, &a.ref.node, 5, 0); + h2o_http2_scheduler_open(&c.ref, &a.ref.node, 4, 0); + h2o_http2_scheduler_open(&d.ref, &c.ref.node, 3, 0); + h2o_http2_scheduler_open(&e.ref, &c.ref.node, 2, 0); + h2o_http2_scheduler_open(&f.ref, &d.ref.node, 1, 0); + + output[0] = '\0'; + dump_tree(&root); + ok(strcmp(output, "(A6(B5C4(D3(F1)E2)))") == 0); + + h2o_http2_scheduler_rebind(&a.ref, &d.ref.node, 1, test_reprioritize_exclusive); + output[0] = '\0'; + dump_tree(&root); + if (!test_reprioritize_exclusive) { + ok(strcmp(output, "(D3(F1A1(B5C4(E2))))") == 0); + } else { + ok(strcmp(output, "(D3(A1(B5C4(E2)F1)))") == 0); + } + + h2o_http2_scheduler_close(&a.ref); + h2o_http2_scheduler_close(&b.ref); + h2o_http2_scheduler_close(&c.ref); + h2o_http2_scheduler_close(&d.ref); + h2o_http2_scheduler_close(&e.ref); + h2o_http2_scheduler_close(&f.ref); + h2o_http2_scheduler_dispose(&root); +} + +static void test_change_weight(void) +{ + h2o_http2_scheduler_node_t root; + node_t nodeA = {{{NULL}}, "A", 1, 0}; + node_t nodeB = {{{NULL}}, "B", 1, 0}; + node_t nodeC = {{{NULL}}, "C", 1, 0}; + + h2o_http2_scheduler_init(&root); + + /* open them all with priority=16 */ + h2o_http2_scheduler_open(&nodeA.ref, &root, 16, 0); + h2o_http2_scheduler_activate(&nodeA.ref); + h2o_http2_scheduler_open(&nodeB.ref, &root, 16, 0); + h2o_http2_scheduler_activate(&nodeB.ref); + h2o_http2_scheduler_open(&nodeC.ref, &root, 16, 0); + h2o_http2_scheduler_activate(&nodeC.ref); + output[0] = '\0'; + dump_tree(&root); + ok(strcmp(output, "(A16B16C16)") == 0); + + /* check the output */ + output[0] = '\0'; + max_cnt = 20; + h2o_http2_scheduler_run(&root, iterate_cb, NULL); + ok(strcmp(output, "A,B,C,A,B,C,A,B,C,A,B,C,A,B,C,A,B,C,A,B") == 0); + + /* nodeA.priority = 4 */ + h2o_http2_scheduler_rebind(&nodeA.ref, &root, 4, 0); + output[0] = '\0'; + dump_tree(&root); + ok(strcmp(output, "(B16C16A4)") == 0); + output[0] = '\0'; + max_cnt = 20; + h2o_http2_scheduler_run(&root, iterate_cb, NULL); + ok(strcmp(output, "C,B,C,B,C,B,C,A,B,C,B,C,B,C,B,C,A,B,C,B") == 0); + + /* eventually disactivate B,C */ + nodeB.still_is_active = 0; + nodeC.still_is_active = 0; + output[0] = '\0'; + max_cnt = 10; + h2o_http2_scheduler_run(&root, iterate_cb, NULL); + ok(strcmp(output, "C,B,A,A,A,A,A,A,A,A") == 0); + + h2o_http2_scheduler_close(&nodeA.ref); + h2o_http2_scheduler_close(&nodeB.ref); + h2o_http2_scheduler_close(&nodeC.ref); + h2o_http2_scheduler_dispose(&root); +} + +static void test_exclusive_at_current_pos(void) +{ + h2o_http2_scheduler_node_t root; + node_t nodeA = {{{NULL}}, "A", 1, 0}; + node_t nodeB = {{{NULL}}, "B", 1, 0}; + node_t nodeC = {{{NULL}}, "C", 1, 0}; + + h2o_http2_scheduler_init(&root); + + /* open them all with priority=16 */ + h2o_http2_scheduler_open(&nodeA.ref, &root, 16, 0); + h2o_http2_scheduler_activate(&nodeA.ref); + h2o_http2_scheduler_open(&nodeB.ref, &root, 16, 0); + h2o_http2_scheduler_activate(&nodeB.ref); + h2o_http2_scheduler_open(&nodeC.ref, &root, 16, 0); + h2o_http2_scheduler_activate(&nodeC.ref); + + output[0] = '\0'; + dump_tree(&root); + ok(strcmp(output, "(A16B16C16)") == 0); + + h2o_http2_scheduler_rebind(&nodeB.ref, &root, 1, 1); + + output[0] = '\0'; + dump_tree(&root); + ok(strcmp(output, "(B1(A16C16))") == 0); + + h2o_http2_scheduler_close(&nodeA.ref); + h2o_http2_scheduler_close(&nodeB.ref); + h2o_http2_scheduler_close(&nodeC.ref); + h2o_http2_scheduler_dispose(&root); +} + +void test_lib__http2__scheduler(void) +{ + subtest("drr", test_queue); + subtest("round-robin", test_round_robin); + subtest("priority", test_priority); + subtest("dependency", test_dependency); + subtest("exclusive", test_exclusive); + subtest("firefox", test_firefox); + test_reprioritize_exclusive = 0; + subtest("repriortize-nonexclusive", test_reprioritize); + test_reprioritize_exclusive = 1; + subtest("repriortize-exclusive", test_reprioritize); + subtest("change-weight", test_change_weight); + subtest("exclusive-at-current-pos", test_exclusive_at_current_pos); +} |