From 9c9710c8dd7277bb0df1b8f0ba023d1f2163cb26 Mon Sep 17 00:00:00 2001 From: aiju Date: Tue, 17 May 2011 16:52:25 +0000 Subject: [PATCH] added tput(1) --- sys/src/cmd/tput.c | 42 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 sys/src/cmd/tput.c diff --git a/sys/src/cmd/tput.c b/sys/src/cmd/tput.c new file mode 100644 index 000000000..47ef99b89 --- /dev/null +++ b/sys/src/cmd/tput.c @@ -0,0 +1,42 @@ +#include +#include + +enum {buflen = 4096}; + +void +main(int argc, char **argv) +{ + int rc, cpid, fd, dopipe; + static char buf[buflen]; + static uvlong bc, sec; + double speed; + + dopipe = 0; + ARGBEGIN { + case 'p': dopipe = 1; + } ARGEND + + bc = 0; + sec = 0; + cpid = rfork(RFPROC | RFMEM); + if(cpid == 0) { + while(1) { + sleep(1000); + speed = bc / ++sec; + if(speed >= 1073741824) fprint(2, "%.2f GB/s\n", speed / 1073741824); + else if(speed >= 1048576) fprint(2, "%.2f MB/s\n", speed / 1048576); + else if(speed >= 1024) fprint(2, "%.2f KB/s\n", speed / 1024); + else fprint(2, "%.2f B/s\n", speed); + } + } + while(1) { + rc = read(0, buf, buflen); + if(rc <= 0) break; + if(dopipe) write(1, buf, rc); + bc += rc; + } + sprint(buf, "/proc/%d/note", cpid); + fd = open(buf, OWRITE); + write(fd, "kill", 4); + if(rc < 0) sysfatal("%r"); +}