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...rapper) runs, and do 'qemu -help' so we know + * the version of qemu what options this qemu supports. */ static int test_qemu (guestfs_h *g, struct backend_direct_data *data) { CLEANUP_CMD_CLOSE struct command *cmd1 = guestfs_int_new_command (g); CLEANUP_CMD_CLOSE struct command *cmd2 = guestfs_int_new_command (g); - CLEANUP_CMD_CLOSE struct command *cmd3 = guestfs_int_new_command (g); int r; free (data->qemu_help); data->qemu_help = NULL; - free (data->qemu_version); - data->qemu_version = NULL; free (data->qemu_devices); data->qemu_devices...

...(cmd1, "-help"); guestfs___cmd_set_stdout_callback (cmd1, read_all, &data->qemu_help, CMD_STDOUT_FLAG_WHOLE_BUFFER); @@ -927,7 +929,8 @@ test_qemu (guestfs_h *g, struct backend_direct_data *data) goto error; guestfs___cmd_add_arg (cmd2, g->hv); - guestfs___cmd_add_arg (cmd2, "-nographic"); + guestfs___cmd_add_arg (cmd2, "-display"); + guestfs___cmd_add_arg (cmd2, "none"); guestfs___cmd_add_arg (cmd2, "-version"); guestfs___cmd_set_stdout_callback (cmd2, read_all, &data->q...

...+ + error: + guestfs_int_free_qemu_data (data); + return NULL; } static int -test_qemu (guestfs_h *g, struct qemu_data *data) +test_qemu_help (guestfs_h *g, struct qemu_data *data) { - CLEANUP_CMD_CLOSE struct command *cmd1 = guestfs_int_new_command (g); - CLEANUP_CMD_CLOSE struct command *cmd2 = guestfs_int_new_command (g); + CLEANUP_CMD_CLOSE struct command *cmd = guestfs_int_new_command (g); int r; - guestfs_int_cmd_add_arg (cmd1, g->hv); - guestfs_int_cmd_add_arg (cmd1, "-display"); - guestfs_int_cmd_add_arg (cmd1, "none"); - guestfs_int_cmd_add_arg (c...

v1 -> v2: - Rebase on top of Pino's version work. Two patches went upstream, these are the two remaining patches. Note the generation number is still inside the qemu.stat file. We could put it in the filename, I have no particular preference. Rich.

...lose"); + exit (EXIT_FAILURE); + } + + if (verbose) + fprintf (stderr, + "%s -i: running: %s\n", program_name, cmd); + + FILE *pp = popen (cmd, "r"); + if (pp == NULL) { + perror (cmd); + exit (EXIT_FAILURE); + } + + char *cmd2; + fp = open_memstream (&cmd2, &cmdlen); + if (fp == NULL) { + perror ("open_memstream"); + exit (EXIT_FAILURE); + } - sprintf (&cmd[strlen(cmd)], "` && %s $a", real_argv0); + fprintf (fp, "%s", real_argv0); if (gue...

The patch I posted last week to disable mandatory locking for readonly drives (https://www.redhat.com/archives/libguestfs/2017-September/msg00013.html) was wrong in a couple of respects. Firstly it didn't work, which I didn't detect because my tests were testing the wrong thing. Oops. Secondly it used a simple version number check to detect qemu binaries implementing mandatory locking.

Doing qemu feature detection in the direct backend takes ~100ms because we need to run `qemu -help' and `qemu -devices ?', and each of those interacts with glibc's very slow link loader. Fixing the link loader is really hard. Instead memoize the output of those two commands. This patch series first separates all the code dealing with qemu into a separate module (src/qemu.c) and

v2 -> v3: - I addressed everything that Pino mentioned last time. - It's tricky to get a stable run when multiple copies of qemu are involved, because the same cache files get overwritten by parallel libguestfs. So I changed the names of the cache files to include the qemu binary key (size, mtime), which removes this conflict. This is in new patch 4/6. Rich.

Patches 1-4 are almost the same as they are when previously posted here: https://www.redhat.com/archives/libguestfs/2017-September/msg00039.html Patch 5 actually uses the mandatory locking test to turn off locking in the narrow case where a drive is opened readonly, and then only for the drive being inspected. Passes ordinary tests (‘check-direct’ and ‘check-valgrind-direct’). Rich.

...python can't see various python modules I have to import to make the python script work). Basically I need to do this: ============ mytreefile_location <- "/bioinformatics/phylocom/_results/beta/ss_newicks/subsamp6_fromea_wnalist.newick" cmd1 = 'source ~/.bash_profile' cmd2 = paste('python /bioinformatics/phylocom/_scripts/update_newick_root.py ', mytreefile_location) system(cmd1) system(cmd2) ============ ...but if I do it this way, the sourcing of .bash_profile from the first system() call does not carry over to the 2nd system() call. Any help appreci...

Hi I am wanting to time how long it takes a couple commands to run. I can do "time command" and it tells me. How do I do multple commands at a time. I tried: time command; command no good time "command; command" no good I can make a script I guess but thought there was a more elegant way. Thanks, jerry

...let cmd = sprintf "%s %s" zcat (quote file) in @@ -67,11 +70,19 @@ object tmpfile in + (* Untar only ovf and manifest from the archive *) + let untar_partial file outdir = + let cmd1 = [ "tar"; "-tf" ; file ] in + let cmd2 = [ "grep"; "\\.\\(ovf\\|mf\\)$" ] in + let cmd3 = [ "xargs"; "tar"; "-xf" ; file; "-C"; outdir ] in + if shell_command ((stringify_args cmd1) ^ " | " ^ (stringify_args cmd2) ^ " | " ^ (stringify_args...

Hi suppose I have two arrays x1,x2 of dimensions a1,b1,c1 and a2,b2,c2 respectively. I want x = x1 "+" x2 with dimensions c(max(a1,a2), max(b1,b2),max (c1,c2)) with x[a,b,c] = x1[a1,b1,c1] + x2[a2,b2,c2] if a <=min(a1,a2) , b<=min (b1,b2), c<=min(c1,c2) and the other bits either x1 or x2 or zero according to whether the coordinates are "in range" for

This may have been asked before, if so, please excuse me and point me to the right direction. What I want to do is to define a hash table with multiple key->value pairs. I would like to pass this variable to a file template and generate a result file with all the mappings listed. Based on what I read, I need to do it in a definition. But does Puppet supports loop over a hash? Any help would

Patches 1 & 2 were posted previously here: https://www.redhat.com/archives/libguestfs/2016-May/msg00134.html Patch 3 is a hack so I can test this using my own version of qemu (the `-L ?' stuff is not upstream). Patch 4 is where the real action takes place: Replace the caching of qemu features in blob-like files with a sqlite database. Probably the best way to approach this patch is to

...to improve readibility - Reboot If your system features the reboot.c32 module, the "reboot" command will restart your computer. The floppy/iso images we provides includes this module to enable this feature. - Automatic Commands When starting HDT, you can specifiy a new auto='<cmd1;cmd2,cmd3>' option. This option will automaticaly runs commands cmd1;cmd2;cmd3 in this order and then fallback to the CLI. It can be used to run automatic diagnostic when booting HDT. auto='show summary' This example will show the summary and the enter the CLI. auto='show summary; e...

...g to have in 0.3.5: - Reboot If your system features the reboot.c32 module, the "reboot" command will restart your computer. The floppy/iso images we provides includes this module to enable this feature. - Automatic Commands When starting HDT, you can specifiy a new auto='<cmd1;cmd2,cmd3>' option. This option will automaticaly runs commands cmd1;cmd2;cmd3 in this order and then fallback to the CLI. It can be used to run automatic diagnostic when booting HDT. auto='show summary' This example will show the summary and the enter the CLI. auto='show summary;...

...to improve readibility - Reboot If your system features the reboot.c32 module, the "reboot" command will restart your computer. The floppy/iso images we provides includes this module to enable this feature. - Automatic Commands When starting HDT, you can specifiy a new auto='<cmd1;cmd2,cmd3>' option. This option will automaticaly runs commands cmd1;cmd2;cmd3 in this order and then fallback to the CLI. It can be used to run automatic diagnostic when booting HDT. auto='show summary' This example will show the summary and the enter the CLI. auto='show summary; e...

This is still a draft, not ready for commit yet. But feedback is welcomed. This series is related to the problem of inefficient import of OVA files. The needed enhancements of QEMU was merged into the codebase and should be available in QEMU 2.8. From there we can use 'size' and 'offset' options in raw driver to tell QEMU to use only subset of a file as an image. The first three

Lots of changes since v2, too much to remember or summarize. Please ignore patch 11/11, it's just for my testing. Rich.