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You should signal your thread that you want it to finish by sending message, or using some signaling object, so that your thread could make neccessary cleanup before exitting
rrrado
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You mean like using IPC? That would be the preferred method but that assumes known interfaces etc.
"No matter where you go, there your are." - Buckaroo Banzai
-pete
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Is there a way to send a signal to one process from another process. I know you can call "raise(SIGINT)" to send a signal to your own process. Can one re-direct a signal to another process?
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Hi,
Did you try ResetEvent(), SetEvent(), WaitForSingleObject() ?
Sincerely Yours,
RadioShark
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ResetEvent(), SetEvent(), WaitForSingleObject() don't they work for thread...??
I think mutex is the solution....
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You could use the WM_COPYDATA mechanism, but you need to have the hwnd of the process you want to signal.
------- sig starts
"I've heard some drivers saying, 'We're going too fast here...'. If you're not here to race, go the hell home - don't come here and grumble about going too fast. Why don't you tie a kerosene rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt
"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001
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i hope can someone help me in this project.....
firstly i want to know how to read a text from a file...
after that convert the text to lowercase or uppercase...
than count the probability of the word that appear in the text......
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Reading files look at CFile
For string manipulation look at CString, it can covert to upper / lower and has Find functionality in order to match partial strings (words) within other strings (text).
Ant.
I'm hard, yet soft.
I'm coloured, yet clear.
I'm fuity and sweet.
I'm jelly, what am I? Muse on it further, I shall return! - David Williams (Little Britain)
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Assuming you want to use MFC:
CStdioFile file;
BOOL eof=TRUE;
CString lineOfText;
//See CFile and CStdioFile documentation in MSDN for other Open() options
file.Open("C:\\pathToYourFile\\filename.txt", CFile::modeRead);
while(eof==TRUE)
{
eof=file.ReadString(lineOfText);
lineOfText.MakeUpper();
lineOfText.MakeLower()
}
file.Close();
MS
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Sounds like a homework assignment to me...
How about reading your textbook first?
------- sig starts
"I've heard some drivers saying, 'We're going too fast here...'. If you're not here to race, go the hell home - don't come here and grumble about going too fast. Why don't you tie a kerosene rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt
"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001
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The thought crossed my mind. Then I thought, the hell with it, I will point them in the right direction today! Some reading would be required however 
Ant.
I'm hard, yet soft.
I'm coloured, yet clear.
I'm fuity and sweet.
I'm jelly, what am I? Muse on it further, I shall return! - David Williams (Little Britain)
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Given a path e.g. c:\somedir1\somedir2\file.txt how can you find out if file.txt is a directory or a file?
Can't base the judgement on the extension, since there could be a directory named file.txt. 
On a side note
I have an application that is using FindFirstFile and FindNextFile to enumerate all files and subdirectories in a given path.
Now I want to check if this given path is a pointing to a file, so I could ShellExecute the file, instead of calling the above functions. 
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To check for directory you need to check the dwFileAttributes of the WIN32_FIND_DATA structure that you pass to FindFirstFile or FindNextFile
WIN32_FIND_DATA data;
...
if (data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
{
...
}
Ant.
I'm hard, yet soft.
I'm coloured, yet clear.
I'm fuity and sweet.
I'm jelly, what am I? Muse on it further, I shall return! - David Williams (Little Britain)
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Test FindFirstFile() etc. WIN32_FIND_DATA.dwFileAttributes for FILE_ATTRIBUTE_DIRECTORY. Should do the trick.
Neville Franks, Author of ED for Windows www.getsoft.com and coming soon: Surfulater www.surfulater.com
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I am using the following code to create a named pipe
<br />
SECURITY_ATTRIBUTES saPipeSecurity = {0};<br />
PSECURITY_DESCRIPTOR pPipeSD = NULL;<br />
<br />
if(lpSecurityAttributes == NULL)<br />
{<br />
if ( ! ( pPipeSD = ( PSECURITY_DESCRIPTOR) <br />
( malloc ( SECURITY_DESCRIPTOR_MIN_LENGTH)) ) )<br />
return FALSE;<br />
<br />
if ( ! InitializeSecurityDescriptor ( pPipeSD, <br />
SECURITY_DESCRIPTOR_REVISION) )<br />
return FALSE;<br />
<br />
if ( ! SetSecurityDescriptorDacl ( pPipeSD, TRUE, ( PACL) NULL, FALSE) )<br />
return FALSE;<br />
<br />
saPipeSecurity.nLength = sizeof ( SECURITY_ATTRIBUTES);<br />
saPipeSecurity.bInheritHandle = TRUE; <br />
saPipeSecurity.lpSecurityDescriptor = pPipeSD;<br />
<br />
lpSecurityAttributes = &saPipeSecurity;<br />
}<br />
<br />
m_hPipe = ::CreateNamedPipe(pszPipeName, dwOpenMode, dwPipeMode, dwMaxInstances, <br />
dwOutBufferSize, dwInBufferSize, dwDefaultTimeOut, lpSecurityAttributes);<br />
then I use a CreateProcessWithLogonW to spawn a new process that connect to this pipe using CreateFile. The createfile fails and return last error gives 5(access denied). Can anybody guess what I am doing wrong.
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but what kind of a value does dwOpenMode have?
Access specified when a pipe is opened (CreateFile) must be compatible with the access specified in the dwOpenMode (CreateNamedPipe).
if PIPE_ACCESS_OUTBOUND or PIPE_ACCESS_INBOUND
you must call CreateFile with
GENERIC_READ, GENERIC_WRITE accordingly as dwDesiredAccess param.
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thanks I was able to resolve that issue...now I am facing a new issue..CreateProcessWithLogonW call is taking too much time on a WinXP machine, but work fine of a Win2000...any ideas why?
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What is an upper limit for dynamic allocation of single array?
For an example:
int* A_of_int = new int[X];
What is upper value for X. The environment is visual studio 6 on windows platform (XP). I suppose one of the limits is memory size.
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Hi
Perhaps I'm wrong but INT_MAX is defined as maximum int value 2^31-1
What I need is maximum array size for type int
Is constant INT_MAX also used to define maximum array size for type int?
Tomaz Rotovnik
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I need an huge array and I want prevent application crash.
I think I found the answer:
max heap size is declared in malloc.h
/* Maximum heap request the heap manager will attempt */
#define _HEAP_MAXREQ 0xFFFFFFE0
Tomaz Rotovnik
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Tomaz Rotovnik wrote:
#define _HEAP_MAXREQ 0xFFFFFFE0
That is 4GB, a lot more memory that most computers have...
If you use malloc to alloc your array, the app will not crash, but you will get a NULL pointer if it fails.
- Anders
Money talks, but all mine ever says is "Goodbye!"
ShotKeeper, my Photo Album / Organizer Application
[^]
My Photos[^]
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Anders Molin wrote:
That is 4GB, a lot more memory that most computers have...
Even if the computer had 8GB of RAM, the memory manager only allows each process 2GB for its address space, or 3GB if the /3GB startup switch were used.
Anders Molin wrote:
...if it fails.
That should be "when it fails."
"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen
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Hi , I'm wondering if anyone can help me out with this , or steer me in the right direction.
I get these errors , when trying to compile..
--
C:\phonebook.cpp(71) : error C2593: 'operator >>' is ambiguous
C:\phonebook.cpp(72) : error C2593: 'operator <<' is ambiguous
C:\phonebook.cpp(73) : error C2593: 'operator <<' is ambiguous
--
<br />
#include iostream
#include fstream<br />
#include cstring<br />
<br />
using namespace std;<br />
<br />
class phonebook {<br />
public:<br />
char name[80];<br />
char areacode[4];<br />
char prefix[4];<br />
char num[5];<br />
phonebook() { };<br />
phonebook(char *n, char *a, char *p, char *nm)<br />
{<br />
strcpy(name,n);<br />
strcpy(areacode,a);<br />
strcpy(prefix,p);<br />
strcpy(num,nm);<br />
}<br />
friend ostream &operator<<(ostream &stream, phonebook o);<br />
friend istream &operator>>(istream &stream, phonebook &o);<br />
};<br />
<br />
ostream &operator<<(ostream &stream, phonebook o)<br />
{<br />
stream << o.name << "\t";<br />
stream << "(" << o.areacode << ") ";<br />
stream << o.prefix << "-";<br />
stream << o.num << "\n";<br />
return stream;<br />
}<br />
<br />
istream &operator>>(istream &stream, phonebook &o)<br />
{<br />
cout << "Enter name: ";<br />
stream >> o.name;<br />
cout << "Enter area code: ";<br />
stream >> o.areacode;<br />
cout << "Enter prefix: ";<br />
stream >> o.prefix;<br />
cout << "Enter number: ";<br />
stream >> o.num;<br />
cout << "\n";<br />
return stream;<br />
}<br />
<br />
bool main (void)<br />
{<br />
phonebook a;<br />
char c;<br />
fstream pb("phone", ios::in | ios::out | ios::app);<br />
<br />
if(!pb) {<br />
cout << "Cannot open phone book file.\n";<br />
return false;<br />
}<br />
<br />
for(;;) {<br />
do {<br />
cout << "1. Enter numbers\n";<br />
cout << "2. Display numbers\n";<br />
cout << "3. Quit\n";<br />
cout << "\nEnter a choice: ";<br />
cin >> c;<br />
} while(c<'1' || c>'3');<br />
<br />
switch(c) {<br />
case '1':<br />
<br />
cin >> a;<br />
cout << "Entry is: " << a;<br />
pb << a;<br />
break;<br />
<br />
case '2':<br />
<br />
char ch;<br />
pb.seekg(0, ios::beg);<br />
while(!pb.eof()) {<br />
pb.get(ch);<br />
if(!pb.eof()) cout << ch;<br />
}<br />
pb.clear();<br />
cout << endl;<br />
break;<br />
<br />
case '3':<br />
<br />
pb.close();<br />
return false;<br />
<br />
}<br />
<br />
}<br />
return true;<br />
}<br />
it seems to have trouble around here.
--
cin >> a;
cout << "Entry is: " << a;
pb << a;
--
any help ,or comments would be greatly appreciated.
Thanks..
Note: this code is originally from "The Complete Reference, C++ Fourth Edition" , a book I've been studying..
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