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How to print time in format: 2009‐08‐10 18:17:54.811
...
char buffer[26];
int millisec;
struct tm* tm_info;
struct timeval tv;
gettimeofday(&tv, NULL);
millisec = lrint(tv.tv_usec/1000.0); // Round to nearest millisec
if (millisec>=1000) { // Allow for rounding up to nearest second
millisec -=1000;
tv.tv_sec++;
}
tm_in...
Linux: is there a read or recv from socket with timeout?
...l implementations
allow this option to be set.
// LINUX
struct timeval tv;
tv.tv_sec = timeout_in_seconds;
tv.tv_usec = 0;
setsockopt(sockfd, SOL_SOCKET, SO_RCVTIMEO, (const char*)&tv, sizeof tv);
// WINDOWS
DWORD timeout = timeout_in_seconds * 1000;
setsockopt(socket, SOL_SOCKET, SO_RCVTIM...
How to measure time in milliseconds using ANSI C?
...ate on many systems.
You can use this function like this:
struct timeval tval_before, tval_after, tval_result;
gettimeofday(&tval_before, NULL);
// Some code you want to time, for example:
sleep(1);
gettimeofday(&tval_after, NULL);
timersub(&tval_after, &tval_before, &tval_...
Android: Want to set custom fonts for whole application not runtime
...Asset(
getBaseContext().getAssets(), "fonts/BPreplay.otf");
TextView tv1 = (TextView)findViewById(R.id.tv1);
tv1.setTypeface(tf);
TextView tv2 = (TextView)findViewById(R.id.tv2);
tv2.setTypeface(tf);
TextView tv3 = (TextView)findViewById(R.id.tv3);
tv3.setTypeface(t...
How to set the font style to bold, italic and underlined in an Android TextView?
I want to make a TextView 's content bold, italic and underlined. I tried the following code and it works, but doesn't underline.
...
How to get the current time in milliseconds from C in Linux?
...mespec spec;
clock_gettime(CLOCK_REALTIME, &spec);
s = spec.tv_sec;
ms = round(spec.tv_nsec / 1.0e6); // Convert nanoseconds to milliseconds
if (ms > 999) {
s++;
ms = 0;
}
printf("Current time: %"PRIdMAX".%03ld seconds since the Epoch\n",
...
Android应用开发性能优化完全分析 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...关于性能优化的优质博文网上也还是有很多的，譬如Google官方都已经推出了优化专题，我这里只是总结下自的感悟而已，若有得罪欢迎拍砖，我愿挨打，因为我之前工作的一半时间都是负责性能优化）。
当然了，本文不会就此...
C++ obtaining milliseconds time on Linux — clock() doesn't seem to work properly
...ts. You'll get a structure like the following:
struct timeval {
time_t tv_sec;
suseconds_t tv_usec;
}
EDIT: As the two comments below suggest, clock_gettime(CLOCK_MONOTONIC) is a much better choice if you have it available, which should be almost everywhere these days.
EDIT: Someone else co...
Execution time of C program
...
You functionally want this:
#include <sys/time.h>
struct timeval tv1, tv2;
gettimeofday(&tv1, NULL);
/* stuff to do! */
gettimeofday(&tv2, NULL);
printf ("Total time = %f seconds\n",
(double) (tv2.tv_usec - tv1.tv_usec) / 1000000 +
(double) (tv2.tv_sec - tv1.tv_s...
How to Calculate Execution Time of a Code Snippet in C++
...cond (10^-3) intervals */
return ret;
#else
/* Linux */
struct timeval tv;
gettimeofday(&tv, NULL);
uint64 ret = tv.tv_usec;
/* Convert from micro seconds (10^-6) to milliseconds (10^-3) */
ret /= 1000;
/* Adds the seconds (10^0) after converting them to milliseconds (10^-3) */
ret ...