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20 commits

Author SHA1 Message Date
Markus Armbruster f9c9eb7334
util/cutils: Drop QEMU_STRTOSZ_DEFSUFFIX_* macros
Writing QEMU_STRTOSZ_DEFSUFFIX_* instead of '*' gains nothing. Get
rid of these eyesores.

Backports commit 17f942560e54f8ee72996bc3276c697503606d7b from qemu
2018-03-02 08:53:15 -05:00
Markus Armbruster 858acd4142
util/cutils: New qemu_strtosz()
Most callers of qemu_strtosz_suffix() pass QEMU_STRTOSZ_DEFSUFFIX_B.
Capture the pattern in new qemu_strtosz().

Inline qemu_strtosz_suffix() into its only remaining caller.

Backports commit 466dea14e677555dd24465aca75d00a3537ad062 from qemu
2018-03-02 08:50:56 -05:00
Markus Armbruster a3358798d6
util/cutils: Rename qemu_strtosz() to qemu_strtosz_MiB()
With qemu_strtosz(), no suffix means mebibytes. It's used rarely.
I'm going to add a similar function where no suffix means bytes.
Rename qemu_strtosz() to qemu_strtosz_MiB() to make the name
qemu_strtosz() available for the new function.

Backports commit e591591b323772eea733de6027f5e8b50692d0ff from qemu
2018-03-02 08:49:26 -05:00
Markus Armbruster f656cd91ec
util/cutils: New qemu_strtosz_metric()
To parse numbers with metric suffixes, we use

qemu_strtosz_suffix_unit(nptr, &eptr, QEMU_STRTOSZ_DEFSUFFIX_B, 1000)

Capture this in a new function for legibility:

qemu_strtosz_metric(nptr, &eptr)

Replace test_qemu_strtosz_suffix_unit() by test_qemu_strtosz_metric().

Rename qemu_strtosz_suffix_unit() to do_strtosz() and give it internal
linkage.

Backports commit d2734d2629266006b0413433778474d5801c60be from qemu
2018-03-02 08:47:40 -05:00
Markus Armbruster fb962d2e74
util/cutils: Clean up control flow around qemu_strtol() a bit
Reorder check_strtox_error() to make it obvious that we always store
through a non-null @endptr.

Transform

if (some error) {
error case ...
err = value for error case;
} else {
normal case ...
err = value for normal case;
}
return err;

to

if (some error) {
error case ...
return value for error case;
}
normal case ...
return value for normal case;

Backports commit 4baef2679e029c76707be1e2ed54bf3dd21693fe from qemu
2018-03-02 08:45:18 -05:00
Markus Armbruster 9236950e61
util/cutils: Clean up variable names around qemu_strtol()
Name same things the same, different things differently.

* qemu_strtol()'s parameter @nptr is called @p in
check_strtox_error(). Rename the latter.

* qemu_strtol()'s parameter @endptr is called @next in
check_strtox_error(). Rename the latter.

* qemu_strtol()'s variable @p is called @endptr in
check_strtox_error(). Rename both to @ep.

* qemu_strtol()'s variable @err is *negative* errno,
check_strtox_error()'s parameter @err is *positive*. Rename the
latter to @libc_errno.

Same for qemu_strtoul(), qemu_strtoi64(), qemu_strtou64(), of course.

Backports commit 717adf960933da0650d995f050d457063d591914 from qemu
2018-03-02 08:41:47 -05:00
Markus Armbruster 41c2e1168f
util/cutils: Rename qemu_strtoll(), qemu_strtoull()
The name qemu_strtoll() suggests conversion to long long, but it
actually converts to int64_t. Rename to qemu_strtoi64().

The name qemu_strtoull() suggests conversion to unsigned long long,
but it actually converts to uint64_t. Rename to qemu_strtou64().

Backports commit b30d188677456b17c1cd68969e08ddc634cef644 from qemu
2018-03-02 08:39:45 -05:00
Markus Armbruster ac34d92d09
util/cutils: Rewrite documentation of qemu_strtol() & friends
Fixes the following documentation bugs:

* Fails to document that null @nptr is safe.

* Fails to document that we return -EINVAL when no conversion could be
performed (commit 47d4be1).

* Confuses long long with int64_t, and unsigned long long with
uint64_t.

* Claims the unsigned conversions can underflow. They can't.

While there, mark problematic assumptions that int64_t is long long,
and uint64_t is unsigned long long with FIXME comments.

Backports commit 4295f879becfbbb9f4330489311586b96915d920 from qemu
2018-03-02 08:37:57 -05:00
Daniel P. Berrange 83a5bf2d25
qapi: rename QmpOutputVisitor to QObjectOutputVisitor
The QmpOutputVisitor has no direct dependency on QMP. It is
valid to use it anywhere that one wants a QObject. Rename it
to better reflect its functionality as a generic QAPI
to QObject converter.

The commit before previous renamed the files, this one renames C
identifiers.

Backports commit 7d5e199ade76c53ec316ab6779800581bb47c50a from qemu
2018-02-27 08:05:33 -05:00
Lioncash 1ff9724b46
cutils: Remove unused vector ifdef block 2018-02-26 02:28:50 -05:00
Vijay 5608b53b6f
target-arm: Use Neon for zero checking
Use Neon instructions to perform zero checking of
buffer. This is helps in reducing total migration time.

Use case: Idle VM live migration with 4 VCPUS and 8GB ram
running CentOS 7.

Without Neon, the Total migration time is 3.5 Sec

Migration status: completed
total time: 3560 milliseconds
downtime: 33 milliseconds
setup: 5 milliseconds
transferred ram: 297907 kbytes
throughput: 685.76 mbps
remaining ram: 0 kbytes
total ram: 8519872 kbytes
duplicate: 2062760 pages
skipped: 0 pages
normal: 69808 pages
normal bytes: 279232 kbytes
dirty sync count: 3

With Neon, the total migration time is 2.9 Sec

Migration status: completed
total time: 2960 milliseconds
downtime: 65 milliseconds
setup: 4 milliseconds
transferred ram: 299869 kbytes
throughput: 830.19 mbps
remaining ram: 0 kbytes
total ram: 8519872 kbytes
duplicate: 2064313 pages
skipped: 0 pages
normal: 70294 pages
normal bytes: 281176 kbytes
dirty sync count: 3

Backports commit 7069532e3b944c25707d4f69998e68a739eabff9 from qemu
2018-02-25 19:17:38 -05:00
Veronia Bahaa bafc81b1d3
util: move declarations out of qemu-common.h
Move declarations out of qemu-common.h for functions declared in
utils/ files: e.g. include/qemu/path.h for utils/path.c.
Move inline functions out of qemu-common.h and into new files (e.g.
include/qemu/bcd.h)

Backports commit f348b6d1a53e5271cf1c9f9acc4646b4b98c1771 from qemu
2018-02-22 09:25:48 -05:00
Marc-André Lureau fff79ed49b
utils: rename strtosz to use qemu prefix
Not only it makes sense, but it gets rid of checkpatch warning:
WARNING: consider using qemu_strtosz in preference to strtosz

Also remove get rid of tabs to please checkpatch.

Backports commit 4677bb40f809394bef5fa07329dea855c0371697 from qemu
2018-02-22 00:17:52 -05:00
Peter Maydell 56d213f16c
util: Clean up includes
Clean up includes so that osdep.h is included first and headers
which it implies are not included manually.

This commit was created with scripts/clean-includes.

Backports commit aafd758410015e08b1aa8964d739ba8587ce58dc from qemu
2018-02-19 01:27:55 -05:00
Peter Maydell e08c524068
Remove unused qemu_fls function
Nothing uses qemu_fls() any more, so delete it.

Backports commit 10944a19209bb520054569e0f156f50338901264 from qemu
2018-02-17 15:23:35 -05:00
Lioncash cef0353be4
qemu-common: Add missing string util functions 2018-02-17 15:23:28 -05:00
Paolo Bonzini 542f162b35
cutils: add strpadcpy()
Backports commit 2a025ae454c361fb03aadf88e8a2f678b80b38e6 from qemu
2018-02-17 15:23:28 -05:00
xorstream 1aeaf5c40d This code should now build the x86_x64-softmmu part 2. 2017-01-19 22:50:28 +11:00
Nguyen Anh Quynh c1f39c3db2 cleanup qemu/util code 2017-01-10 12:57:12 +08:00
Nguyen Anh Quynh 344d016104 import 2015-08-21 15:04:50 +08:00