1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
|
/*-------------------------------------------------------------------------
*
* isolation_main --- pg_regress test launcher for isolation tests
*
* Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/test/isolation/isolation_main.c
*
*-------------------------------------------------------------------------
*/
#include "postgres_fe.h"
#include "pg_regress.h"
char saved_argv0[MAXPGPATH];
char isolation_exec[MAXPGPATH];
bool looked_up_isolation_exec = false;
#define PG_ISOLATION_VERSIONSTR "isolationtester (PostgreSQL) " PG_VERSION "\n"
/*
* start an isolation tester process for specified file (including
* redirection), and return process ID
*/
static PID_TYPE
isolation_start_test(const char *testname,
_stringlist **resultfiles,
_stringlist **expectfiles,
_stringlist **tags)
{
PID_TYPE pid;
char infile[MAXPGPATH];
char outfile[MAXPGPATH];
char expectfile[MAXPGPATH];
char psql_cmd[MAXPGPATH * 3];
size_t offset = 0;
char *appnameenv;
/* need to do the path lookup here, check isolation_init() for details */
if (!looked_up_isolation_exec)
{
/* look for isolationtester binary */
if (find_other_exec(saved_argv0, "isolationtester",
PG_ISOLATION_VERSIONSTR, isolation_exec) != 0)
{
fprintf(stderr, _("could not find proper isolationtester binary\n"));
exit(2);
}
looked_up_isolation_exec = true;
}
/*
* Look for files in the output dir first, consistent with a vpath search.
* This is mainly to create more reasonable error messages if the file is
* not found. It also allows local test overrides when running pg_regress
* outside of the source tree.
*/
snprintf(infile, sizeof(infile), "%s/specs/%s.spec",
outputdir, testname);
if (!file_exists(infile))
snprintf(infile, sizeof(infile), "%s/specs/%s.spec",
inputdir, testname);
snprintf(outfile, sizeof(outfile), "%s/results/%s.out",
outputdir, testname);
snprintf(expectfile, sizeof(expectfile), "%s/expected/%s.out",
outputdir, testname);
if (!file_exists(expectfile))
snprintf(expectfile, sizeof(expectfile), "%s/expected/%s.out",
inputdir, testname);
add_stringlist_item(resultfiles, outfile);
add_stringlist_item(expectfiles, expectfile);
if (launcher)
{
offset += snprintf(psql_cmd + offset, sizeof(psql_cmd) - offset,
"%s ", launcher);
if (offset >= sizeof(psql_cmd))
{
fprintf(stderr, _("command too long\n"));
exit(2);
}
}
offset += snprintf(psql_cmd + offset, sizeof(psql_cmd) - offset,
"\"%s\" \"dbname=%s\" < \"%s\" > \"%s\" 2>&1",
isolation_exec,
dblist->str,
infile,
outfile);
if (offset >= sizeof(psql_cmd))
{
fprintf(stderr, _("command too long\n"));
exit(2);
}
appnameenv = psprintf("isolation/%s", testname);
setenv("PGAPPNAME", appnameenv, 1);
free(appnameenv);
pid = spawn_process(psql_cmd);
if (pid == INVALID_PID)
{
fprintf(stderr, _("could not start process for test %s\n"),
testname);
exit(2);
}
unsetenv("PGAPPNAME");
return pid;
}
static void
isolation_init(int argc, char **argv)
{
size_t argv0_len;
/*
* We unfortunately cannot do the find_other_exec() lookup to find the
* "isolationtester" binary here. regression_main() calls the
* initialization functions before parsing the commandline arguments and
* thus hasn't changed the library search path at this point which in turn
* can cause the "isolationtester -V" invocation that find_other_exec()
* does to fail since it's linked to libpq. So we instead copy argv[0]
* and do the lookup the first time through isolation_start_test().
*/
argv0_len = strlcpy(saved_argv0, argv[0], MAXPGPATH);
if (argv0_len >= MAXPGPATH)
{
fprintf(stderr, _("path for isolationtester executable is longer than %d bytes\n"),
(int) (MAXPGPATH - 1));
exit(2);
}
/* set default regression database name */
add_stringlist_item(&dblist, "isolation_regression");
}
int
main(int argc, char *argv[])
{
return regression_main(argc, argv,
isolation_init,
isolation_start_test,
NULL /* no postfunc needed */ );
}
|
