I am trying to create a shell project purely for this Macbook Pro.
I do NOT want to use SOX as the sampling _source_ but Quicktime
instead, the idea being that NO third party installs will be needed.
The code below works fine except the commented out Applescript line
does not do what it says on the tin...
I want to sample 1 second snatches of a signal without the small audio
recording image appearing on screen. In other words a pseudo-embedded
mode...
Does anyone know if or how this can be done?
If not then I can live with it during each snatch...
Ignore the lines below the asterisks they are for my test purposes only
and be aware of wordwrapping...
Any help would be greatly appreciated...
TIA.
Last edited by wisecracker; 09-04-2014 at 03:28 AM..
Reason: Now solved...
Dear Friends,
I write a c program to list the directories recursively. For this I write a function called my_readdir to read the content of directory. For this I use read system call it returns -1, then I use readdir system call it gives comment terminated error or segmentation... (1 Reply)
I install a software xchm for opening chm files.
I install software and also its required libraries. But when i start it; no GUI appears. Application got halt. Process name also appears in process list when i run top command. Appliation continously using cpu but no GUI appears. Please tell me... (7 Replies)
Hi,
i am using IBM P6 server and OS is AIX 5.3. my code is written in c/pro C.
i am facing problem in msgctl() system call.The variables msg_qbytes and msg_cbytes are used to store total no of bytes and current no of bytes in a QUEUE,but it is showing me as ZERO though data are there... (0 Replies)
This is shell script I have made to lists out directory contents and filenames for any given directory (without using ls command). There is some problem in dirfunc function call which I have marked 1 is not working. Can anybody suggest what is the problem there and how should I correct it.
... (2 Replies)
hi,
where can I find the detail information about the syscall in binary instructions of linux/mips.
for example, in linux/mips:
li v0, 4140
syscall
it's a syacall of "lseek" , but how can I find that which registers will be used in this syscall , and the meaning of the arguments in the... (2 Replies)
Hi All,
My application gets hang at the popen statement in Soalris 5.8. While debugging I found that it halts at _lwp_sema_wait. After googling I have added /usr/lib/lwp in the LD_LIBRARY_PATH and now it halts at lwp_park. Please help me what I need to do to solve this issue. The application runs... (6 Replies)
hello all,
I have developed a server application in C for ulinux kernel 2.6.It works very fine; creating a socket, binding it to a port, listening for incoming sockets and accepting them ,all finish without any error.
But there is a problem regarding application crash.After an intentionally... (1 Reply)
The following code:
int fd;
if (fd = open("mem", O_RDONLY) == -1)
return 1;
if (lseek(fd, 0, SEEK_SET) == -1) {
char *buf = malloc(512);
buf = strerror(errno);
printf("%s\n", buf);
return 1;
}
always returns with "illegal seek"... (2 Replies)
Discussion started by: Sir_Tomasz
2 Replies
LEARN ABOUT ULTRIX
moncontrol
monitor(3) Library Functions Manual monitor(3)Name
monitor, monstartup, moncontrol - prepare execution profile
Synopsis
monitor(lowpc, highpc, buffer, bufsize, nfunc)
int (*lowpc)(), (*highpc)();
short buffer[];
monstartup(lowpc, highpc)
int (*lowpc)(), (*highpc)();
moncontrol(mode)
Description
These functions use the system call to control program-counter sampling. Using the option -p when compiling or linking a program automati-
cally generates calls to these functions. You do need not to call these functions explicitly unless you want more control.
Typically, you would call either or to initialize pc-sampling and enable it; call to disable or reenable it; and call at the end of execu-
tion to disable sampling and record the samples in a file.
Your initial call to enables pc-sampling. The parameters lowpc and highpc specify the range of addresses to be sampled. The lowest
address is that of lowpc and the highest is just below highpc. The buffer parameter is the address of a (user allocated) array of bufsize
short integers, which holds a record of the samples; for best results, the buffer should not be less than a few times smaller than the
range of addresses sampled. The nfunc parameter is ignored.
The environment variable PROFDIR determines the name of the output file and whether pc-sampling takes place: if it is not set, the file is
named mon.out; if set to the empty string, no pc-sampling occurs; if set to a non-empty string, the file is named string/pid.progname,
where pid is the process id of the executing program and progname is the program's name as it appears in argv[0]. The subdirectory string
must already exist.
To profile the entire program, use the following:
extern eprol(), etext();
. . .
monitor(eprol, etext, buf, bufsize, 0);
The routine lies just below the user program text, and lies just above it, as described in (Because the user program does not necessarily
start at a low memory address, using a small number in place of is dangerous).
The routine is an alternate form of that calls (see for you to allocate the buffer.
The function selectively disables and re-enables pc-sampling within a program, allowing you to measure the cost of particular operations.
The function disables pc-sampling, and reenables it.
To stop execution monitoring and write the results in the output file, use the following:
monitor(0);
Files
mon.out default name for output file
libprof1.a routines for pc-sampling
See Alsocc(1), ld(1), profil(2), brk(2)
RISC monitor(3)