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comparison src/share/vm/runtime/os.cpp @ 548:773234c55e8c

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6800586: -XX:+PrintGCDateStamps is using mt-unsafe localtime function Summary: replaced localtime() with localtime_r() on Solaris and Linux. Reviewed-by: apetrusenko, dholmes, jmasa
author ysr
date Mon, 09 Feb 2009 12:26:05 -0800
parents 24fda36852ce
children 0fbdb4381b99 98cb887364d3 c6c601a0f2d6
comparison
equal deleted inserted replaced
547:1e458753107d 548:773234c55e8c
72 const time_t seconds_since_19700101 = 72 const time_t seconds_since_19700101 =
73 milliseconds_since_19700101 / milliseconds_per_microsecond; 73 milliseconds_since_19700101 / milliseconds_per_microsecond;
74 const int milliseconds_after_second = 74 const int milliseconds_after_second =
75 milliseconds_since_19700101 % milliseconds_per_microsecond; 75 milliseconds_since_19700101 % milliseconds_per_microsecond;
76 // Convert the time value to a tm and timezone variable 76 // Convert the time value to a tm and timezone variable
77 const struct tm *time_struct_temp = localtime(&seconds_since_19700101); 77 struct tm time_struct;
78 if (time_struct_temp == NULL) { 78 if (localtime_pd(&seconds_since_19700101, &time_struct) == NULL) {
79 assert(false, "Failed localtime"); 79 assert(false, "Failed localtime_pd");
80 return NULL; 80 return NULL;
81 } 81 }
82 // Save the results of localtime
83 const struct tm time_struct = *time_struct_temp;
84 const time_t zone = timezone; 82 const time_t zone = timezone;
85 83
86 // If daylight savings time is in effect, 84 // If daylight savings time is in effect,
87 // we are 1 hour East of our time zone 85 // we are 1 hour East of our time zone
88 const time_t seconds_per_minute = 60; 86 const time_t seconds_per_minute = 60;
91 time_t UTC_to_local = zone; 89 time_t UTC_to_local = zone;
92 if (time_struct.tm_isdst > 0) { 90 if (time_struct.tm_isdst > 0) {
93 UTC_to_local = UTC_to_local - seconds_per_hour; 91 UTC_to_local = UTC_to_local - seconds_per_hour;
94 } 92 }
95 // Compute the time zone offset. 93 // Compute the time zone offset.
96 // localtime(3C) sets timezone to the difference (in seconds) 94 // localtime_pd() sets timezone to the difference (in seconds)
97 // between UTC and and local time. 95 // between UTC and and local time.
98 // ISO 8601 says we need the difference between local time and UTC, 96 // ISO 8601 says we need the difference between local time and UTC,
99 // we change the sign of the localtime(3C) result. 97 // we change the sign of the localtime_pd() result.
100 const time_t local_to_UTC = -(UTC_to_local); 98 const time_t local_to_UTC = -(UTC_to_local);
101 // Then we have to figure out if if we are ahead (+) or behind (-) UTC. 99 // Then we have to figure out if if we are ahead (+) or behind (-) UTC.
102 char sign_local_to_UTC = '+'; 100 char sign_local_to_UTC = '+';
103 time_t abs_local_to_UTC = local_to_UTC; 101 time_t abs_local_to_UTC = local_to_UTC;
104 if (local_to_UTC < 0) { 102 if (local_to_UTC < 0) {