GCC Code Coverage Report

Directory: cvmfs/
File: cvmfs/sql.cc
Date: 2024-04-21 02:33:16
Exec Total Coverage
Lines: 46 85 54.1%
Branches: 12 86 14.0%
Line Branch Exec Source
1 /**
2 * This file is part of the CernVM file system.
3 */
4
5 #include "cvmfs_config.h"
6 #include "sql.h"
7
8 #include "util/logging.h"
9 #include "util/string.h"
10
11 using namespace std; // NOLINT
12
13 namespace sqlite {
14
15 3338 Sql::Sql(sqlite3 *sqlite_db, const std::string &statement)
16 3338 : database_(NULL)
17 3338 , statement_(NULL)
18 3338 , query_string_(NULL)
19 3338 , last_error_code_(0)
20 {
21 3338 const bool success = Init(sqlite_db, statement);
22
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 3338 assert(success);
23 3338 }
24
25
26 21082 Sql::~Sql() {
27 16712 last_error_code_ = sqlite3_finalize(statement_);
28
29
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 16712 if (!Successful()) {
30 12 LogCvmfs(kLogSql, kLogDebug,
31 "failed to finalize statement - error code: %d", last_error_code_);
32 }
33 16712 LogCvmfs(kLogSql, kLogDebug, "successfully finalized statement");
34 21082 }
35
36
37 /**
38 * Executes the prepared statement.
39 * (this method should be used for modifying statements like DELETE or INSERT)
40 * @return true on success otherwise false
41 */
42 162554 bool Sql::Execute() {
43 162554 LazyInit();
44 162554 last_error_code_ = sqlite3_step(statement_);
45 #ifdef DEBUGMSG
46
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 162554 if (!Successful()) {
47
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 6 LogCvmfs(kLogSql, kLogDebug, "SQL query failed - SQLite: %d - %s",
48 12 GetLastError(), GetLastErrorMsg().c_str());
49 }
50 #endif
51 162554 return Successful();
52 }
53
54
55 /**
56 * Execute the prepared statement or fetch its next row.
57 * This method is intended to step through the result set.
58 * If it returns false this does not necessarily mean, that the actual
59 * statement execution failed, but that no row was fetched.
60 * @return true if a new row was fetched otherwise false
61 */
62 11831 bool Sql::FetchRow() {
63 11831 LazyInit();
64 11831 last_error_code_ = sqlite3_step(statement_);
65 11831 return SQLITE_ROW == last_error_code_;
66 }
67
68
69 ✗ std::string Sql::DebugResultTable() {
70 ✗ std::string line;
71 ✗ std::string result;
72 ✗ unsigned int rows = 0;
73
74 // go through all data rows
75 ✗ while (FetchRow()) {
76 // retrieve the table header (once)
77 ✗ const unsigned int cols = sqlite3_column_count(statement_);
78 ✗ if (rows == 0) {
79 ✗ for (unsigned int col = 0; col < cols; ++col) {
80 ✗ const char *name = sqlite3_column_name(statement_, col);
81 ✗ line += name;
82 ✗ if (col + 1 < cols) line += " | ";
83 }
84 ✗ result += line + "\n";
85 ✗ line.clear();
86 }
87
88 // retrieve the data fields for each row
89 ✗ for (unsigned int col = 0; col < cols; ++col) {
90 ✗ const int type = sqlite3_column_type(statement_, col);
91 ✗ switch (type) {
92 ✗ case SQLITE_INTEGER:
93 ✗ line += StringifyInt(RetrieveInt64(col));
94 ✗ break;
95 ✗ case SQLITE_FLOAT:
96 ✗ line += StringifyDouble(RetrieveDouble(col));
97 ✗ break;
98 ✗ case SQLITE_TEXT:
99 ✗ line += reinterpret_cast<const char *>(RetrieveText(col));
100 ✗ break;
101 ✗ case SQLITE_BLOB:
102 ✗ line += "[BLOB data]";
103 ✗ break;
104 ✗ case SQLITE_NULL:
105 ✗ line += "[NULL]";
106 ✗ break;
107 }
108 ✗ if (col + 1 < cols) line += " | ";
109 }
110
111 ✗ result += line + "\n";
112 ✗ line.clear();
113 ✗ ++rows;
114 }
115
116 // print the result
117 ✗ result += "Retrieved Rows: " + StringifyInt(rows);
118 ✗ return result;
119 }
120
121
122 /**
123 * Reset a prepared statement to make it reusable.
124 * @return true on success otherwise false
125 */
126 168679 bool Sql::Reset() {
127 168679 last_error_code_ = sqlite3_reset(statement_);
128 168679 return Successful();
129 }
130
131
132 4484 bool Sql::Init(const sqlite3 *database, const std::string &statement) {
133 4484 database_ = const_cast<sqlite3 *>(database);
134 4484 return Init(statement.c_str());
135 }
136
137 5486 bool Sql::Init(const char *statement) {
138
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 5486 assert(NULL == statement_);
139
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 5486 assert(NULL != database_);
140
141 5486 last_error_code_ = sqlite3_prepare_v2(database_,
142 statement,
143 -1, // parse until null termination
144 &statement_,
145 NULL);
146
147
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 5486 if (!Successful()) {
148 ✗ LogCvmfs(kLogSql, kLogDebug, "failed to prepare statement '%s' (%d: %s)",
149 statement, GetLastError(), sqlite3_errmsg(database_));
150 ✗ return false;
151 }
152
153 5486 LogCvmfs(kLogSql, kLogDebug, "successfully prepared statement '%s'",
154 statement);
155 5486 return true;
156 }
157
158 3927 void Sql::DeferredInit(const sqlite3 *database, const char *statement) {
159
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 3927 assert(NULL == database_);
160 3927 database_ = const_cast<sqlite3 *>(database);
161 3927 query_string_ = statement;
162 3927 }
163
164 6 std::string Sql::GetLastErrorMsg() const {
165
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 6 std::string msg = sqlite3_errmsg(database_);
166 6 return msg;
167 }
168
169 } // namespace sqlite
170