multiplead and identified with a specific PID (package identifier. Si includes the business description table (SDT), event information table (EIT), time and date table (TDT), Time Offset Table (TOT), and Business Group Association Table (BAT) and running status table (RST), fill table (ST), select the information table (SIT), discontinuing information table (DIT) and other table information. The tables in Si do not need to be transmitted in actual us
///www.baidu.com/cache/sethelp/index.htmlhttp://home.baidu.comcreate_debugger_socket("localhost", 9000) socket: Too many open filescreate_debugger_socket("localhost", 9000) socket: Too many openfilescreate_debugger_socket("localhost", 9000) socket: Too many openfilescreate_debugger_socket("localhost", 9000) socket: Too
The date type is used in my database. When programming in Java and Import both java.util.* and java.sql.*, it is found that the date type is declared directly
Date DT;
will be an error, checked to find that there are java.util.Date and java.sql.Date, in the definition of the date type to use the full name, is like this:
Java.util.Date UDT;
Java.sql.Date SDT;
Then I will check java.util.Date and java.sql.Date differences and usage, th
refers to the devices that are required to be allocated based on the user's I/O requests. The general principle of allocation is to give full play to the efficiency of the use of equipment, as far as possible to keep the equipment busy, but also to avoid due to unreasonable allocation method caused by process deadlock.
Device features, the following three ways of using the device are called exclusive devices, shared devices and virtual devices.
Spooling technology was introduced in the era
In the database, I found out a period of time and divided it into several segments ....
That is to say, I will divide this period into eight parts by checking the period from 2009-1-1 1-1 to 2009-1-2 1-3. If I want to check the period from 2009-1-1 1-1 to 2009-1-3 1-3, I will divide it into eight parts.
Declare @ I int, @ SDT datetime, @ EDT datetime, @ t bigintSelect @ I = 8, @ SDT = '2017-1-1 ', @ EDT
industry-parsers (such as Ll-parser/lr-parser), refer to Wikipedia's parser entry. 2. Grammar-guided translation (syntax-directed translation, SDT)grammar-guided translation refers to a conversion process, which is intended to translate the input string into a series of semantic actions, which are created by adding rules or program fragments to the grammar to achieve. SDT provides an easy way to attach se
The date type is used in my database. Java programming when the import of java.util.* and java.sql.*, found that the direct declaration of the date typeDate DT;will be an error, check to find that there are java.util.Date and java.sql.Date, when defining the date type to use the full name, is like this:Java.util.Date UDT;Java.sql.Date SDT;Then I check java.util.Date and java.sql.Date the difference and usage, this aspect of online information is very
Let's take a look at what jumbo frames is.We know that in the TCP/IP covariance cluster, the Ethernet Data Link layer communicates in frames (frame), the size of 1 frames is set to 1,518 bytes, the MTU of the traditional 10M nic frame (Maximum transmission Unit Max transmission Unit) The size is 1500 bytes (as shown in the example), the base 14 bytes are reserved to the frame header, 4 bytes are reserved to the CRC checksum, actually go to the entire TCP/IP header 40 bytes, valid data is 1460 by
1-1
Implements a simple function call.
Focus on Stack-oriented applications.
RET is called when a call is returned, and a number is followed to indicate the number of bytes of data into the stack during the call.
1-2
Implements code self-migration.
The include statement cannot start with a file because the program starts from the first line during execution. (It may be relocated. It is unknown currently)
The memory addresses marked after the move must be adjusted again.
When short jump or short
you money, it seems that you have taken out the money, but it is actually the money offered by the bank. ntdll. dll is the money collector. He puts the function code (deposit form) in the eax register (the grouve below the glass), and then triggers self-traps to trigger KiSystemService (called the clerk ), the clerk will actually process the transaction (execute the corresponding function ).)4. kiSystemService extracts the function code from the eax register and searches for the corresponding N
to use.4. Do you want to have 51 Single-Chip Microcomputer basics, such as AVR?There is better, but it doesn't matter.Two months ago, I only watched other people do it ~~, I have studied single-chip microcomputer and have never done so. Our technical backbone is AVR and 51, and I have called the C language program with them. You see it? I'm a good newbie, right?But before doing this, I found two zlg books and read the examples and schematics. This is very important. If there is C in the assembl
not need to write it yourself.
5. software to be learned during development
To sum up, there are mainly the following: 1 ads debugging
Specifically, it is ads + axd. ADS contains axd. After using SDT, arm stopped supporting SDT and changed to support ads.
Some people still release SDT, but they can basically find the corresponding ads. New people should not b
, refer to the parser entries in wikipedia.
2. Syntax-Directed Translation, SDT)Syntax-guided translation refers to a conversion process in which the input string is translated into a series of semantic actions, which are achieved by appending rules or program fragments to the syntax-generated form. SDT provides a simple method for appending a semantic action (semantic actions) to a syntax.SDT has two impo
TS Packet header parsing
Allocation of table identifier value (TABLE_ID)
Value Description
0X00 Program Association segment (PAT)
0x01 conditional receive segment (CAT)
0X02 Program Map segment (PMT)
0X03 Transport Stream Description segment
0x04 to 0x3F reserved
0x40 Current Network information segment (NIT actual)
0x41 Other network information segments (NIT other)
0x42 Current Transport Flow Service description segment (SDT actual)
0x43 to 0x
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