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...展示，其作用类似于pthread_cond_wait
*/
struct stTask_t
{
int id;
};
struct stEnv_t
{
stCoCond_t* cond;
queue<stTask_t*> task_queue;
};
void* Producer(void* args)
{
co_enable_hook_sys();
stEnv_t* env= (stEnv_t*)args;
int id = 0;
while (true)
{
stTask_t* task = (s...
Data Modeling with Kafka? Topics and Partitions
...o in the example above, I would just have a single topic and if you´ll decide to push some other kind of data through Kafka, you can add a new topic for that later.
Topics are registered in ZooKeeper which means that you might run into issues if trying to add too many of them, e.g. the case where ...
Override browser form-filling and input highlighting with HTML/CSS
...ut:-webkit-autofill {
background-color: #FAFFBD !important;
}
1) as #id-styles are even more important than .class styles, the following may work:
#inputId:-webkit-autofill {
background-color: white !important;
}
2) if that won't work, you can try to set the style via javascript program...
Selenium wait until document is ready
... not sure whether it quits the page loading after the exception thrown. i didn't try this code yet. Want to just try it.
This is an implicit wait. If you set this once it will have the scope until the Web Driver instance destroy.
See the documentation for WebDriver.Timeouts for more info.
...
Must qualify the allocation with an enclosing instance of type GeoLocation
...ure:
FILE GeoLocation.java
public class GeoLocation {
public static void main(String[] args) throws InterruptedException {
int size = 10;
// create thread pool with given size
ExecutorService service = Executors.newFixedThreadPool(size);
// queue some tasks
...
How can I create an executable JAR with dependencies using Maven?
...
<build>
<plugins>
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<configuration>
<archive>
<manifest>
<mainClass>fully.qualified.MainClass</mainClass>
</manifest>...
Why are nested weights bad for performance? Alternatives?
...ted weights are bad for performance because:
Layout weights require a widget to be measured twice. When a
LinearLayout with non-zero weights is nested inside another
LinearLayout with non-zero weights, then the number of measurements
increase exponentially.
It's better to use RelativeLay...
setTimeout or setInterval?
...ipt running - the interval will have to wait for that to finish.
In this Fiddle, you can clearly see that the timeout will fall behind, while the interval is almost all the time at almost 1 call/second (which the script is trying to do). If you change the speed variable at the top to something smal...
sql primary key and index
Say I have an ID row (int) in a database set as the primary key. If I query off the ID often do I also need to index it? Or does it being a primary key mean it's already indexed?
...
How to specify maven's distributionManagement organisation wide?
....xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>your.company</groupId>
<artifactId>company-parent</artifactId>
<version>1.0.0-SNAPSHOT</version>
<packaging>pom</packaging>
<distributionManagement>
...