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Tài liệu Advanced PHP Programming- P5 pdf
... files:> mv Advanced_ PHP Advanced_ PHP.old> cvs -d /var/cvs checkout Advanced_ PHPcvs checkout: Updating Advanced_ PHPcvs checkout: Updating Advanced_ PHP/examplesU Advanced_ PHP/examples/chapter-10/1.phpU ... compiler caches for PHP:nThe Zend Accelerator—A commercial, closed-source, for-cost compiler cacheproduced by Zend IndustriesnThe ionCube Accelerator—A commercial, closed-source, but free compilercache ... not much better.Here is the same code with an improved naming scheme:$cc_number = $_GET[‘cc_number’];$cc_is_valid = CreditCard_IsValidCCNumber($cc_number);if($cc_is_valid) {// …}This code...
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Tài liệu Advanced PHP Programming- P8 pdf
... original Netscape cookie specification(http://wp.netscape.com/newsref/std/cookie_spec.html).No programmer’s library is complete without a copy of Bruce Schneier’s AppliedCryptography, which is widely ... session stickiness can enhance cachelocality, too many applications rely on session stickiness to function correctly, which isbad design. Relying on session stickiness exposes an application to ... the cache directory. Constantly scanning that directory can cause serious con-tention.Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark. 331Maintaining Authentication:...
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Tài liệu Advanced PHP Programming- P9 pdf
... ComparedThe choice of which RPC protocol to implement—SOAP or XML-RPC—is oftendictated by circumstance. If you are implementing a service that needs to interact withexisting clients or servers, your choice ... using centralized caches is to have cache reads be completelyindependent of any central service and to have writes coordinate in a distributed fashionto invalidate all cache copies across the cluster.Please ... theCache_File module developed in Chapter 10,“Data Component Caching,” you canextend this caching architecture seamlessly by creating an exportable directory /shares/cache/www.foo.com on your NFS server...
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Tài liệu Advanced Linux Programming: A-Other Development Tools pdf
... object filesand linking. For example, consider this code:% gcc -pg -c -o calculator.o calculator .c % gcc -pg -c -o stack.o stack .c % gcc -pg -c -o number.o number .c % gcc -pg calculator.o stack.o ... -lccmalloc -ldl to your link command, for instance.% gcc -g -Wall -pedantic malloc-use.o -o ccmalloc-use -lccmalloc –ldlExecute the program to produce a report. For example, running our malloc-use ... our calculator program, which isproduced by executing gprof ./calculator:Flat profile:Each sample counts as 0.01 seconds.% cumulative self self total time seconds seconds calls ms/call ms/call...
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Tài liệu Advanced Linux Programming: C Table of Signals ppt
... kill command.SIGCHLD Linux sends a process this signal when a child process exits. SeeSection 3.4.4,“Cleaning Up Children Asynchronously,” inChapter 3,“Processes.”SIGXCPU Linux sends a process ... pointer” can cause a SIGSEGV.SIGPIPE The program has attempted to access a broken data stream, suchas a socket connection that has been closed by the other party.SIGALRM The alarm system call schedules ... illegalinstruction.This could indicate that the program’s stack is corrupted.SIGABRT The abort function causes the process to receive this signal.SIGFPE The process has executed an invalid floating-point...
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Tài liệu Advanced Linux Programming: 1-Advanced UNIX Programming with Linux pdf
... Makefile contains:reciprocal: main.o reciprocal.og++ $(CFLAGS) -o reciprocal main.o reciprocal.omain.o: main .c reciprocal.hppgcc $(CFLAGS) -c main .c reciprocal.o: reciprocal.cpp reciprocal.hppg++ ... (“The reciprocal of %d is %g\n”, i, reciprocal (i));return 0;}Listing 1.2 (reciprocal.cpp) C+ + source file—reciprocal.cpp#include <cassert>#include “reciprocal.hpp”double reciprocal (int ... source code into machine-readable object code thatcan actually run.The compilers of choice on Linux systems are all part of the GNUCompiler Collection, usually known as GCC.3GCC also include compilers...
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Tài liệu Brook-Hart - Business Benchmark Advanced - Student''''s Book [ESL English] (Cambridge, 2007)(AnswerKey) pdf
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Tài liệu Advanced Linux Programming: 3-Processes pdf
... SIGCHLD by calling clean_up_child_process. */struct sigaction sigchld_action;memset (&sigchld_action, 0, sizeof (sigchld_action));sigchld_action.sa_handler = &clean_up_child_process;sigaction ... exit code is displayed after each invocation. In the first case, lsexecutes correctly and returns the exit code zero. In the second case, ls encounters anerror (because the filename specified ... exited, and you can choose whether you care aboutwhich child process terminated.3.4.2 The wait System CallsThe simplest such function is called simply wait. It blocks the calling process until...
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Tài liệu Advanced Linux Programming: 7-The /proc File System pdf
... programincludes the function get_cpu_clock_speed that reads from /proc/cpuinfo into memory and extracts the first CPU’s clock speed.Listing 7.1 (clock-speed .c) Extract CPU Clock Speed from /proc/cpuinfo#include ... N491Type: Direct-Access ANSI SCSI revision: 02This computer contains one single-channel SCSI controller (designated “scsi0”), towhich two Quantum disk drives are connected, with SCSI device IDs 0 ... /proc file system includes information about devices connected to both IDEcontrollers and SCSI controllers (if the system includes them).On typical systems, the /proc/ide subdirectory may contain...
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Tài liệu Practical Database Programming With Visual C#.NET- P2 pdf
... the OdbcDataAdapter with its associated OdbcCommand and OdbcConnection objects. For Oracle databases, use the OracleDataAdapter with its associated OracleCommand and OracleConnection objects. ... ProviderDatabaseTransactionCommandExecuteReaderParametersExecuteNonQueryExecuteScalar DataSet DataRelationCollection ConstraintCollection DataTableDataRowCollection DataColumnCollection Your Application Figure 3.2 Another architecture of ADO.NET 2.0. c0 3.indd ... instance or an object based on this class. Depending on your applications, you can create a global connection instance for your entire project or you can create some local connection objects...
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Tài liệu Practical Database Programming With Visual C#.NET- P4 pdf
... based on the real location in which you save your database. D. The Connection object accConnection is initialized with the connection string and a con-nection is executed by calling the Open() ... catch block should be used for this connection operation to catch up any possible exception. Here we skip it since we try to make this connection coding simple. E. The facultyCommand object ... console window. A complete C# Console project named QueryRefl ectionLINQ can be found in the folder DBProjects\Chapter 4 located at the accompanying ftp site (see Chapter 1 ). c0 4.indd 17 5c0 4.indd...
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