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| 1 // Copyright (c) 2014 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2014 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 // | 4 // |
| 5 // This is a utility executable used for generating hashes for pepper | 5 // This is a utility executable used for generating hashes for pepper |
| 6 // interfaces for inclusion in tools/metrics/histograms/histograms.xml. Every | 6 // interfaces for inclusion in tools/metrics/histograms/histograms.xml. Every |
| 7 // interface-version pair must have a corresponding entry in the enum there. | 7 // interface-version pair must have a corresponding entry in the enum there. |
| 8 // | 8 // |
| 9 // The hashing logic here must match the hashing logic at | 9 // The hashing logic here must match the hashing logic at |
| 10 // ppapi/proxy/interface_list.cc. | 10 // ppapi/proxy/interface_list.cc. |
| 11 // | 11 // |
| 12 // This utility can be used to generate a sorted list of hashes for all current | 12 // This utility can be used to generate a sorted list of hashes for all current |
| 13 // PPB* interfaces by running a script to generate the interface names, e.g. | 13 // PPB* interfaces by running a script to generate the interface names, e.g. |
| 14 // $ grep -r "PPB_" ppapi/c | grep -o "\".*;[0-9]*\.[0-9]*\"" | tr '\n' ' ' | 14 // $ grep -r "PPB_" ppapi/c | grep -o "\".*;[0-9]*\.[0-9]*\"" | tr '\n' ' ' |
| 15 // and then invoking pepper_hash_for_uma on the list. The sorted output hashes | 15 // and then invoking pepper_hash_for_uma on the list. The sorted output hashes |
| 16 // can be compared to tools/metrics/histograms/histograms.xml to determine if | 16 // can be compared to tools/metrics/histograms/histograms.xml to determine if |
| 17 // any interfaces have been left out. | 17 // any interfaces have been left out. |
| 18 | 18 |
| 19 #include <stdint.h> |
| 19 #include <stdio.h> | 20 #include <stdio.h> |
| 20 #include <stdlib.h> | 21 #include <stdlib.h> |
| 21 #include <string.h> | 22 #include <string.h> |
| 22 | 23 |
| 23 #include <algorithm> | 24 #include <algorithm> |
| 24 #include <vector> | 25 #include <vector> |
| 25 | 26 |
| 26 #include "base/hash.h" | 27 #include "base/hash.h" |
| 27 #include "base/macros.h" | 28 #include "base/macros.h" |
| 28 | 29 |
| 29 int main(int argc, char **argv) { | 30 int main(int argc, char **argv) { |
| 30 if (argc < 2) { | 31 if (argc < 2) { |
| 31 fprintf(stderr, "Usage: %s <interface1> <interface2> <...>\n", argv[0]); | 32 fprintf(stderr, "Usage: %s <interface1> <interface2> <...>\n", argv[0]); |
| 32 fprintf(stderr, "\n"); | 33 fprintf(stderr, "\n"); |
| 33 fprintf(stderr, "Prints hashes for interface names.\n"); | 34 fprintf(stderr, "Prints hashes for interface names.\n"); |
| 34 fprintf(stderr, "Example: %s \"PPB_Var;1.1\" \"PPB_FileIO;1.2\"\n", | 35 fprintf(stderr, "Example: %s \"PPB_Var;1.1\" \"PPB_FileIO;1.2\"\n", |
| 35 argv[0]); | 36 argv[0]); |
| 36 return 1; | 37 return 1; |
| 37 } | 38 } |
| 38 std::vector<std::pair<uint32, char*>> hashes; | 39 std::vector<std::pair<uint32_t, char*>> hashes; |
| 39 for (int i = 1; i < argc; i++) { | 40 for (int i = 1; i < argc; i++) { |
| 40 uint32 data = base::Hash(argv[i], strlen(argv[i])); | 41 uint32_t data = base::Hash(argv[i], strlen(argv[i])); |
| 41 | 42 |
| 42 // Strip off the signed bit because UMA doesn't support negative values, | 43 // Strip off the signed bit because UMA doesn't support negative values, |
| 43 // but takes a signed int as input. | 44 // but takes a signed int as input. |
| 44 int hash = static_cast<int>(data & 0x7fffffff); | 45 int hash = static_cast<int>(data & 0x7fffffff); |
| 45 hashes.push_back(std::make_pair(hash, argv[i])); | 46 hashes.push_back(std::make_pair(hash, argv[i])); |
| 46 } | 47 } |
| 47 std::sort(hashes.begin(), hashes.end()); | 48 std::sort(hashes.begin(), hashes.end()); |
| 48 for (const auto& hash : hashes) { | 49 for (const auto& hash : hashes) { |
| 49 printf("<int value=\"%d\" label=\"%s\"/>\n", hash.first, hash.second); | 50 printf("<int value=\"%d\" label=\"%s\"/>\n", hash.first, hash.second); |
| 50 } | 51 } |
| 51 | 52 |
| 52 return 0; | 53 return 0; |
| 53 } | 54 } |
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